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Finding the Fourth Proportional to 58,631.04, 87,966 and 38,986.92

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Solution

The fourth proportional to 58,631.04, 87,966 and 38,986.92 is: 58,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,631.04 : 87,966 = 38,986.92 : x
  2. Step 2: Convert to fraction form
    58,631.04/87,966 = 38,986.92/x
  3. Step 3: Cross multiply
    58,631.04x = 87,966 × 38,986.92
  4. Step 4: Simplify right side
    58,631.04x = 3,429,523,404.72
  5. Step 5: Solve for x
    x = 3,429,523,404.72/58,631.04
  6. Step 6: Final answer
    x = 58,493.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.