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Finding the Fourth Proportional to 6,937.68, 9,562.76 and 5,422.60

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Solution

The fourth proportional to 6,937.68, 9,562.76 and 5,422.60 is: 7,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,937.68 : 9,562.76 = 5,422.60 : x
  2. Step 2: Convert to fraction form
    6,937.68/9,562.76 = 5,422.60/x
  3. Step 3: Cross multiply
    6,937.68x = 9,562.76 × 5,422.60
  4. Step 4: Simplify right side
    6,937.68x = 51,855,022.38
  5. Step 5: Solve for x
    x = 51,855,022.38/6,937.68
  6. Step 6: Final answer
    x = 7,474.40

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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.