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Finding the Fourth Proportional to 7,449.30, 9,914.13 and 7,449.30

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Solution

The fourth proportional to 7,449.30, 9,914.13 and 7,449.30 is: 9,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.30 : 9,914.13 = 7,449.30 : x
  2. Step 2: Convert to fraction form
    7,449.30/9,914.13 = 7,449.30/x
  3. Step 3: Cross multiply
    7,449.30x = 9,914.13 × 7,449.30
  4. Step 4: Simplify right side
    7,449.30x = 73,853,328.61
  5. Step 5: Solve for x
    x = 73,853,328.61/7,449.30
  6. Step 6: Final answer
    x = 9,914.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.