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Finding the Fourth Proportional to 7,177.43, 9,902.79 and 4,525.71

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Solution

The fourth proportional to 7,177.43, 9,902.79 and 4,525.71 is: 6,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.43 : 9,902.79 = 4,525.71 : x
  2. Step 2: Convert to fraction form
    7,177.43/9,902.79 = 4,525.71/x
  3. Step 3: Cross multiply
    7,177.43x = 9,902.79 × 4,525.71
  4. Step 4: Simplify right side
    7,177.43x = 44,817,155.73
  5. Step 5: Solve for x
    x = 44,817,155.73/7,177.43
  6. Step 6: Final answer
    x = 6,244.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.