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Finding the Fourth Proportional to 58,107.87, 87,160.59 and 15,987.78

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Solution

The fourth proportional to 58,107.87, 87,160.59 and 15,987.78 is: 23,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,107.87 : 87,160.59 = 15,987.78 : x
  2. Step 2: Convert to fraction form
    58,107.87/87,160.59 = 15,987.78/x
  3. Step 3: Cross multiply
    58,107.87x = 87,160.59 × 15,987.78
  4. Step 4: Simplify right side
    58,107.87x = 1,393,504,337.59
  5. Step 5: Solve for x
    x = 1,393,504,337.59/58,107.87
  6. Step 6: Final answer
    x = 23,981.34

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Similar ratio
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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.