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Finding the Fourth Proportional to 58,613.87, 87,669.63 and 54,359.48

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Solution

The fourth proportional to 58,613.87, 87,669.63 and 54,359.48 is: 81,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,613.87 : 87,669.63 = 54,359.48 : x
  2. Step 2: Convert to fraction form
    58,613.87/87,669.63 = 54,359.48/x
  3. Step 3: Cross multiply
    58,613.87x = 87,669.63 × 54,359.48
  4. Step 4: Simplify right side
    58,613.87x = 4,765,675,498.59
  5. Step 5: Solve for x
    x = 4,765,675,498.59/58,613.87
  6. Step 6: Final answer
    x = 81,306.28

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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.