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Finding the Fourth Proportional to 15,319.92, 22,979.88 and 4,375.92

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Solution

The fourth proportional to 15,319.92, 22,979.88 and 4,375.92 is: 6,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.92 : 22,979.88 = 4,375.92 : x
  2. Step 2: Convert to fraction form
    15,319.92/22,979.88 = 4,375.92/x
  3. Step 3: Cross multiply
    15,319.92x = 22,979.88 × 4,375.92
  4. Step 4: Simplify right side
    15,319.92x = 100,558,116.49
  5. Step 5: Solve for x
    x = 100,558,116.49/15,319.92
  6. Step 6: Final answer
    x = 6,563.88

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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.