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Finding the Fourth Proportional to 75,045.20, 112,553.40 and 22,456.40

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Solution

The fourth proportional to 75,045.20, 112,553.40 and 22,456.40 is: 33,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.20 : 112,553.40 = 22,456.40 : x
  2. Step 2: Convert to fraction form
    75,045.20/112,553.40 = 22,456.40/x
  3. Step 3: Cross multiply
    75,045.20x = 112,553.40 × 22,456.40
  4. Step 4: Simplify right side
    75,045.20x = 2,527,544,171.76
  5. Step 5: Solve for x
    x = 2,527,544,171.76/75,045.20
  6. Step 6: Final answer
    x = 33,680.29

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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.