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Finding the Fourth Proportional to 22,242.72, 33,360.64 and 7,451.52

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Solution

The fourth proportional to 22,242.72, 33,360.64 and 7,451.52 is: 11,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,242.72 : 33,360.64 = 7,451.52 : x
  2. Step 2: Convert to fraction form
    22,242.72/33,360.64 = 7,451.52/x
  3. Step 3: Cross multiply
    22,242.72x = 33,360.64 × 7,451.52
  4. Step 4: Simplify right side
    22,242.72x = 248,587,476.17
  5. Step 5: Solve for x
    x = 248,587,476.17/22,242.72
  6. Step 6: Final answer
    x = 11,176.13

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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.