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Finding the Fourth Proportional to 6,491.18, 9,745.14 and 5,572.64

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Solution

The fourth proportional to 6,491.18, 9,745.14 and 5,572.64 is: 8,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491.18 : 9,745.14 = 5,572.64 : x
  2. Step 2: Convert to fraction form
    6,491.18/9,745.14 = 5,572.64/x
  3. Step 3: Cross multiply
    6,491.18x = 9,745.14 × 5,572.64
  4. Step 4: Simplify right side
    6,491.18x = 54,306,156.97
  5. Step 5: Solve for x
    x = 54,306,156.97/6,491.18
  6. Step 6: Final answer
    x = 8,366.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.