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Finding the Fourth Proportional to 7,751.52, 10,684.98 and 6,341.04

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Solution

The fourth proportional to 7,751.52, 10,684.98 and 6,341.04 is: 8,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.52 : 10,684.98 = 6,341.04 : x
  2. Step 2: Convert to fraction form
    7,751.52/10,684.98 = 6,341.04/x
  3. Step 3: Cross multiply
    7,751.52x = 10,684.98 × 6,341.04
  4. Step 4: Simplify right side
    7,751.52x = 67,753,885.58
  5. Step 5: Solve for x
    x = 67,753,885.58/7,751.52
  6. Step 6: Final answer
    x = 8,740.72

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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.