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Finding the Fourth Proportional to 6,627.52, 9,139.92 and 5,926.86

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Solution

The fourth proportional to 6,627.52, 9,139.92 and 5,926.86 is: 8,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.52 : 9,139.92 = 5,926.86 : x
  2. Step 2: Convert to fraction form
    6,627.52/9,139.92 = 5,926.86/x
  3. Step 3: Cross multiply
    6,627.52x = 9,139.92 × 5,926.86
  4. Step 4: Simplify right side
    6,627.52x = 54,171,026.25
  5. Step 5: Solve for x
    x = 54,171,026.25/6,627.52
  6. Step 6: Final answer
    x = 8,173.65

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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.