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Finding the Fourth Proportional to 9,121.22, 13,681.82 and 7,044.24

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Solution

The fourth proportional to 9,121.22, 13,681.82 and 7,044.24 is: 10,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.22 : 13,681.82 = 7,044.24 : x
  2. Step 2: Convert to fraction form
    9,121.22/13,681.82 = 7,044.24/x
  3. Step 3: Cross multiply
    9,121.22x = 13,681.82 × 7,044.24
  4. Step 4: Simplify right side
    9,121.22x = 96,378,023.72
  5. Step 5: Solve for x
    x = 96,378,023.72/9,121.22
  6. Step 6: Final answer
    x = 10,566.35

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Double scale
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Similar ratio
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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.