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Finding the Fourth Proportional to 11,470.92, 15,829.34 and 6,754.29

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Solution

The fourth proportional to 11,470.92, 15,829.34 and 6,754.29 is: 9,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.92 : 15,829.34 = 6,754.29 : x
  2. Step 2: Convert to fraction form
    11,470.92/15,829.34 = 6,754.29/x
  3. Step 3: Cross multiply
    11,470.92x = 15,829.34 × 6,754.29
  4. Step 4: Simplify right side
    11,470.92x = 106,915,919.10
  5. Step 5: Solve for x
    x = 106,915,919.10/11,470.92
  6. Step 6: Final answer
    x = 9,320.61

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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.