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Finding the Fourth Proportional to 6,616.88, 9,925.20 and 5,583.52

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Solution

The fourth proportional to 6,616.88, 9,925.20 and 5,583.52 is: 8,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.88 : 9,925.20 = 5,583.52 : x
  2. Step 2: Convert to fraction form
    6,616.88/9,925.20 = 5,583.52/x
  3. Step 3: Cross multiply
    6,616.88x = 9,925.20 × 5,583.52
  4. Step 4: Simplify right side
    6,616.88x = 55,417,552.70
  5. Step 5: Solve for x
    x = 55,417,552.70/6,616.88
  6. Step 6: Final answer
    x = 8,375.18

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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.