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Finding the Fourth Proportional to 58,080.10, 80,178.70 and 38,952.88

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Solution

The fourth proportional to 58,080.10, 80,178.70 and 38,952.88 is: 53,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,080.10 : 80,178.70 = 38,952.88 : x
  2. Step 2: Convert to fraction form
    58,080.10/80,178.70 = 38,952.88/x
  3. Step 3: Cross multiply
    58,080.10x = 80,178.70 × 38,952.88
  4. Step 4: Simplify right side
    58,080.10x = 3,123,191,279.66
  5. Step 5: Solve for x
    x = 3,123,191,279.66/58,080.10
  6. Step 6: Final answer
    x = 53,773.86

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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.