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Finding the Fourth Proportional to 10,348.80, 15,550.80 and 9,063.10

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Solution

The fourth proportional to 10,348.80, 15,550.80 and 9,063.10 is: 13,618.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.80 : 15,550.80 = 9,063.10 : x
  2. Step 2: Convert to fraction form
    10,348.80/15,550.80 = 9,063.10/x
  3. Step 3: Cross multiply
    10,348.80x = 15,550.80 × 9,063.10
  4. Step 4: Simplify right side
    10,348.80x = 140,938,455.48
  5. Step 5: Solve for x
    x = 140,938,455.48/10,348.80
  6. Step 6: Final answer
    x = 13,618.82

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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.