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Finding the Fourth Proportional to 6,308.92, 8,704.56 and 4,070.89

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Solution

The fourth proportional to 6,308.92, 8,704.56 and 4,070.89 is: 5,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.92 : 8,704.56 = 4,070.89 : x
  2. Step 2: Convert to fraction form
    6,308.92/8,704.56 = 4,070.89/x
  3. Step 3: Cross multiply
    6,308.92x = 8,704.56 × 4,070.89
  4. Step 4: Simplify right side
    6,308.92x = 35,435,306.26
  5. Step 5: Solve for x
    x = 35,435,306.26/6,308.92
  6. Step 6: Final answer
    x = 5,616.70

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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.