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Finding the Fourth Proportional to 62,490.96, 86,239.80 and 35,629.12

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Solution

The fourth proportional to 62,490.96, 86,239.80 and 35,629.12 is: 49,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,490.96 : 86,239.80 = 35,629.12 : x
  2. Step 2: Convert to fraction form
    62,490.96/86,239.80 = 35,629.12/x
  3. Step 3: Cross multiply
    62,490.96x = 86,239.80 × 35,629.12
  4. Step 4: Simplify right side
    62,490.96x = 3,072,648,182.98
  5. Step 5: Solve for x
    x = 3,072,648,182.98/62,490.96
  6. Step 6: Final answer
    x = 49,169.48

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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.