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Finding the Fourth Proportional to 63,098.01, 86,898.08 and 61,720.20

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Solution

The fourth proportional to 63,098.01, 86,898.08 and 61,720.20 is: 85,000.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,098.01 : 86,898.08 = 61,720.20 : x
  2. Step 2: Convert to fraction form
    63,098.01/86,898.08 = 61,720.20/x
  3. Step 3: Cross multiply
    63,098.01x = 86,898.08 × 61,720.20
  4. Step 4: Simplify right side
    63,098.01x = 5,363,366,568.62
  5. Step 5: Solve for x
    x = 5,363,366,568.62/63,098.01
  6. Step 6: Final answer
    x = 85,000.57

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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.