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Finding the Fourth Proportional to 9,007.68, 12,432.12 and 5,473.20

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Solution

The fourth proportional to 9,007.68, 12,432.12 and 5,473.20 is: 7,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.68 : 12,432.12 = 5,473.20 : x
  2. Step 2: Convert to fraction form
    9,007.68/12,432.12 = 5,473.20/x
  3. Step 3: Cross multiply
    9,007.68x = 12,432.12 × 5,473.20
  4. Step 4: Simplify right side
    9,007.68x = 68,043,479.18
  5. Step 5: Solve for x
    x = 68,043,479.18/9,007.68
  6. Step 6: Final answer
    x = 7,553.94

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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.