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Finding the Fourth Proportional to 7,052.80, 9,732.72 and 3,908.92

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Solution

The fourth proportional to 7,052.80, 9,732.72 and 3,908.92 is: 5,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,052.80 : 9,732.72 = 3,908.92 : x
  2. Step 2: Convert to fraction form
    7,052.80/9,732.72 = 3,908.92/x
  3. Step 3: Cross multiply
    7,052.80x = 9,732.72 × 3,908.92
  4. Step 4: Simplify right side
    7,052.80x = 38,044,423.86
  5. Step 5: Solve for x
    x = 38,044,423.86/7,052.80
  6. Step 6: Final answer
    x = 5,394.23

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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.