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Finding the Fourth Proportional to 22,101.96, 30,500.76 and 12,030.40

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Solution

The fourth proportional to 22,101.96, 30,500.76 and 12,030.40 is: 16,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,101.96 : 30,500.76 = 12,030.40 : x
  2. Step 2: Convert to fraction form
    22,101.96/30,500.76 = 12,030.40/x
  3. Step 3: Cross multiply
    22,101.96x = 30,500.76 × 12,030.40
  4. Step 4: Simplify right side
    22,101.96x = 366,936,343.10
  5. Step 5: Solve for x
    x = 366,936,343.10/22,101.96
  6. Step 6: Final answer
    x = 16,601.98

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Double scale
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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.