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Finding the Fourth Proportional to 10,363.64, 15,550.05 and 5,432.11

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Solution

The fourth proportional to 10,363.64, 15,550.05 and 5,432.11 is: 8,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.64 : 15,550.05 = 5,432.11 : x
  2. Step 2: Convert to fraction form
    10,363.64/15,550.05 = 5,432.11/x
  3. Step 3: Cross multiply
    10,363.64x = 15,550.05 × 5,432.11
  4. Step 4: Simplify right side
    10,363.64x = 84,469,582.11
  5. Step 5: Solve for x
    x = 84,469,582.11/10,363.64
  6. Step 6: Final answer
    x = 8,150.57

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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.