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Finding the Fourth Proportional to 58,398.48, 80,589.90 and 31,540.98

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Solution

The fourth proportional to 58,398.48, 80,589.90 and 31,540.98 is: 43,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,398.48 : 80,589.90 = 31,540.98 : x
  2. Step 2: Convert to fraction form
    58,398.48/80,589.90 = 31,540.98/x
  3. Step 3: Cross multiply
    58,398.48x = 80,589.90 × 31,540.98
  4. Step 4: Simplify right side
    58,398.48x = 2,541,884,424.10
  5. Step 5: Solve for x
    x = 2,541,884,424.10/58,398.48
  6. Step 6: Final answer
    x = 43,526.55

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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.