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Finding the Fourth Proportional to 45,374.70, 67,932.45 and 40,709.10

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Solution

The fourth proportional to 45,374.70, 67,932.45 and 40,709.10 is: 60,947.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,374.70 : 67,932.45 = 40,709.10 : x
  2. Step 2: Convert to fraction form
    45,374.70/67,932.45 = 40,709.10/x
  3. Step 3: Cross multiply
    45,374.70x = 67,932.45 × 40,709.10
  4. Step 4: Simplify right side
    45,374.70x = 2,765,468,900.30
  5. Step 5: Solve for x
    x = 2,765,468,900.30/45,374.70
  6. Step 6: Final answer
    x = 60,947.38

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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.