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Finding the Fourth Proportional to 62,149.64, 86,362.31 and 61,510.28

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Solution

The fourth proportional to 62,149.64, 86,362.31 and 61,510.28 is: 85,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,149.64 : 86,362.31 = 61,510.28 : x
  2. Step 2: Convert to fraction form
    62,149.64/86,362.31 = 61,510.28/x
  3. Step 3: Cross multiply
    62,149.64x = 86,362.31 × 61,510.28
  4. Step 4: Simplify right side
    62,149.64x = 5,312,169,869.55
  5. Step 5: Solve for x
    x = 5,312,169,869.55/62,149.64
  6. Step 6: Final answer
    x = 85,473.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.