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Finding the Fourth Proportional to 7,275.62, 10,913.43 and 5,807.90

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Solution

The fourth proportional to 7,275.62, 10,913.43 and 5,807.90 is: 8,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.62 : 10,913.43 = 5,807.90 : x
  2. Step 2: Convert to fraction form
    7,275.62/10,913.43 = 5,807.90/x
  3. Step 3: Cross multiply
    7,275.62x = 10,913.43 × 5,807.90
  4. Step 4: Simplify right side
    7,275.62x = 63,384,159.16
  5. Step 5: Solve for x
    x = 63,384,159.16/7,275.62
  6. Step 6: Final answer
    x = 8,711.85

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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.