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Finding the Fourth Proportional to 7,251.80, 10,007.16 and 4,107.92

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Solution

The fourth proportional to 7,251.80, 10,007.16 and 4,107.92 is: 5,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.80 : 10,007.16 = 4,107.92 : x
  2. Step 2: Convert to fraction form
    7,251.80/10,007.16 = 4,107.92/x
  3. Step 3: Cross multiply
    7,251.80x = 10,007.16 × 4,107.92
  4. Step 4: Simplify right side
    7,251.80x = 41,108,612.71
  5. Step 5: Solve for x
    x = 41,108,612.71/7,251.80
  6. Step 6: Final answer
    x = 5,668.75

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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.