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Finding the Fourth Proportional to 6,867.92, 9,478.68 and 5,096.72

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Solution

The fourth proportional to 6,867.92, 9,478.68 and 5,096.72 is: 7,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.92 : 9,478.68 = 5,096.72 : x
  2. Step 2: Convert to fraction form
    6,867.92/9,478.68 = 5,096.72/x
  3. Step 3: Cross multiply
    6,867.92x = 9,478.68 × 5,096.72
  4. Step 4: Simplify right side
    6,867.92x = 48,310,177.93
  5. Step 5: Solve for x
    x = 48,310,177.93/6,867.92
  6. Step 6: Final answer
    x = 7,034.18

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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.