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Finding the Fourth Proportional to 22,009.96, 30,373.53 and 11,938.19

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Solution

The fourth proportional to 22,009.96, 30,373.53 and 11,938.19 is: 16,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,009.96 : 30,373.53 = 11,938.19 : x
  2. Step 2: Convert to fraction form
    22,009.96/30,373.53 = 11,938.19/x
  3. Step 3: Cross multiply
    22,009.96x = 30,373.53 × 11,938.19
  4. Step 4: Simplify right side
    22,009.96x = 362,604,836.49
  5. Step 5: Solve for x
    x = 362,604,836.49/22,009.96
  6. Step 6: Final answer
    x = 16,474.58

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Half scale
Find fourth proportional to 44,019.93, 60,747.05 and 23,876.38
Double scale
Find fourth proportional to 22,010.96, 30,374.90 and 11,939.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.