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Finding the Fourth Proportional to 53,163.60, 79,700.10 and 23,565.30

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Solution

The fourth proportional to 53,163.60, 79,700.10 and 23,565.30 is: 35,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,163.60 : 79,700.10 = 23,565.30 : x
  2. Step 2: Convert to fraction form
    53,163.60/79,700.10 = 23,565.30/x
  3. Step 3: Cross multiply
    53,163.60x = 79,700.10 × 23,565.30
  4. Step 4: Simplify right side
    53,163.60x = 1,878,156,766.53
  5. Step 5: Solve for x
    x = 1,878,156,766.53/53,163.60
  6. Step 6: Final answer
    x = 35,327.87

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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.