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Finding the Fourth Proportional to 9,199.46, 12,695.19 and 5,007.71

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Solution

The fourth proportional to 9,199.46, 12,695.19 and 5,007.71 is: 6,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.46 : 12,695.19 = 5,007.71 : x
  2. Step 2: Convert to fraction form
    9,199.46/12,695.19 = 5,007.71/x
  3. Step 3: Cross multiply
    9,199.46x = 12,695.19 × 5,007.71
  4. Step 4: Simplify right side
    9,199.46x = 63,573,829.91
  5. Step 5: Solve for x
    x = 63,573,829.91/9,199.46
  6. Step 6: Final answer
    x = 6,910.60

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Double scale
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Similar ratio
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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.