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Finding the Fourth Proportional to 57,041.46, 85,559.81 and 14,920.88

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Solution

The fourth proportional to 57,041.46, 85,559.81 and 14,920.88 is: 22,380.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,041.46 : 85,559.81 = 14,920.88 : x
  2. Step 2: Convert to fraction form
    57,041.46/85,559.81 = 14,920.88/x
  3. Step 3: Cross multiply
    57,041.46x = 85,559.81 × 14,920.88
  4. Step 4: Simplify right side
    57,041.46x = 1,276,627,155.43
  5. Step 5: Solve for x
    x = 1,276,627,155.43/57,041.46
  6. Step 6: Final answer
    x = 22,380.69

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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.