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Finding the Fourth Proportional to 62,431.72, 86,148.72 and 36,938.86

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Solution

The fourth proportional to 62,431.72, 86,148.72 and 36,938.86 is: 50,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,431.72 : 86,148.72 = 36,938.86 : x
  2. Step 2: Convert to fraction form
    62,431.72/86,148.72 = 36,938.86/x
  3. Step 3: Cross multiply
    62,431.72x = 86,148.72 × 36,938.86
  4. Step 4: Simplify right side
    62,431.72x = 3,182,235,507.26
  5. Step 5: Solve for x
    x = 3,182,235,507.26/62,431.72
  6. Step 6: Final answer
    x = 50,971.45

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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.