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Finding the Fourth Proportional to 58,612.87, 87,668.13 and 54,358.48

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Solution

The fourth proportional to 58,612.87, 87,668.13 and 54,358.48 is: 81,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,612.87 : 87,668.13 = 54,358.48 : x
  2. Step 2: Convert to fraction form
    58,612.87/87,668.13 = 54,358.48/x
  3. Step 3: Cross multiply
    58,612.87x = 87,668.13 × 54,358.48
  4. Step 4: Simplify right side
    58,612.87x = 4,765,506,291.24
  5. Step 5: Solve for x
    x = 4,765,506,291.24/58,612.87
  6. Step 6: Final answer
    x = 81,304.78

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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.