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Finding the Fourth Proportional to 71,349.20, 106,926.60 and 47,589.20

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Solution

The fourth proportional to 71,349.20, 106,926.60 and 47,589.20 is: 71,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,349.20 : 106,926.60 = 47,589.20 : x
  2. Step 2: Convert to fraction form
    71,349.20/106,926.60 = 47,589.20/x
  3. Step 3: Cross multiply
    71,349.20x = 106,926.60 × 47,589.20
  4. Step 4: Simplify right side
    71,349.20x = 5,088,551,352.72
  5. Step 5: Solve for x
    x = 5,088,551,352.72/71,349.20
  6. Step 6: Final answer
    x = 71,318.97

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1.5x scale

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.