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Finding the Fourth Proportional to 75,311.91, 112,889.05 and 25,374.76

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Solution

The fourth proportional to 75,311.91, 112,889.05 and 25,374.76 is: 38,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.91 : 112,889.05 = 25,374.76 : x
  2. Step 2: Convert to fraction form
    75,311.91/112,889.05 = 25,374.76/x
  3. Step 3: Cross multiply
    75,311.91x = 112,889.05 × 25,374.76
  4. Step 4: Simplify right side
    75,311.91x = 2,864,532,550.38
  5. Step 5: Solve for x
    x = 2,864,532,550.38/75,311.91
  6. Step 6: Final answer
    x = 38,035.58

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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.