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Finding the Fourth Proportional to 15,363.80, 23,046.08 and 5,503.76

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Solution

The fourth proportional to 15,363.80, 23,046.08 and 5,503.76 is: 8,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.80 : 23,046.08 = 5,503.76 : x
  2. Step 2: Convert to fraction form
    15,363.80/23,046.08 = 5,503.76/x
  3. Step 3: Cross multiply
    15,363.80x = 23,046.08 × 5,503.76
  4. Step 4: Simplify right side
    15,363.80x = 126,840,093.26
  5. Step 5: Solve for x
    x = 126,840,093.26/15,363.80
  6. Step 6: Final answer
    x = 8,255.78

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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.