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Finding the Fourth Proportional to 10,363.90, 15,545.85 and 4,531.90

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Solution

The fourth proportional to 10,363.90, 15,545.85 and 4,531.90 is: 6,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.90 : 15,545.85 = 4,531.90 : x
  2. Step 2: Convert to fraction form
    10,363.90/15,545.85 = 4,531.90/x
  3. Step 3: Cross multiply
    10,363.90x = 15,545.85 × 4,531.90
  4. Step 4: Simplify right side
    10,363.90x = 70,452,237.62
  5. Step 5: Solve for x
    x = 70,452,237.62/10,363.90
  6. Step 6: Final answer
    x = 6,797.85

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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.