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Finding the Fourth Proportional to 10,960.92, 15,127.16 and 6,245.91

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Solution

The fourth proportional to 10,960.92, 15,127.16 and 6,245.91 is: 8,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,960.92 : 15,127.16 = 6,245.91 : x
  2. Step 2: Convert to fraction form
    10,960.92/15,127.16 = 6,245.91/x
  3. Step 3: Cross multiply
    10,960.92x = 15,127.16 × 6,245.91
  4. Step 4: Simplify right side
    10,960.92x = 94,482,848.69
  5. Step 5: Solve for x
    x = 94,482,848.69/10,960.92
  6. Step 6: Final answer
    x = 8,619.97

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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.