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Finding the Fourth Proportional to 56,471.58, 84,734.64 and 39,937.86

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Solution

The fourth proportional to 56,471.58, 84,734.64 and 39,937.86 is: 59,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,471.58 : 84,734.64 = 39,937.86 : x
  2. Step 2: Convert to fraction form
    56,471.58/84,734.64 = 39,937.86/x
  3. Step 3: Cross multiply
    56,471.58x = 84,734.64 × 39,937.86
  4. Step 4: Simplify right side
    56,471.58x = 3,384,120,189.47
  5. Step 5: Solve for x
    x = 3,384,120,189.47/56,471.58
  6. Step 6: Final answer
    x = 59,926.08

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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.