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Finding the Fourth Proportional to 22,236.01, 30,684.82 and 12,164.19

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Solution

The fourth proportional to 22,236.01, 30,684.82 and 12,164.19 is: 16,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,236.01 : 30,684.82 = 12,164.19 : x
  2. Step 2: Convert to fraction form
    22,236.01/30,684.82 = 12,164.19/x
  3. Step 3: Cross multiply
    22,236.01x = 30,684.82 × 12,164.19
  4. Step 4: Simplify right side
    22,236.01x = 373,255,980.60
  5. Step 5: Solve for x
    x = 373,255,980.60/22,236.01
  6. Step 6: Final answer
    x = 16,786.10

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Half scale
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Double scale
Find fourth proportional to 22,237.01, 30,686.20 and 12,165.19
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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.