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Finding the Fourth Proportional to 15,115.71, 22,674.07 and 5,754.32

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Solution

The fourth proportional to 15,115.71, 22,674.07 and 5,754.32 is: 8,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.71 : 22,674.07 = 5,754.32 : x
  2. Step 2: Convert to fraction form
    15,115.71/22,674.07 = 5,754.32/x
  3. Step 3: Cross multiply
    15,115.71x = 22,674.07 × 5,754.32
  4. Step 4: Simplify right side
    15,115.71x = 130,473,960.87
  5. Step 5: Solve for x
    x = 130,473,960.87/15,115.71
  6. Step 6: Final answer
    x = 8,631.68

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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.