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Finding the Fourth Proportional to 7,398.88, 11,101.20 and 3,292

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Solution

The fourth proportional to 7,398.88, 11,101.20 and 3,292 is: 4,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.88 : 11,101.20 = 3,292 : x
  2. Step 2: Convert to fraction form
    7,398.88/11,101.20 = 3,292/x
  3. Step 3: Cross multiply
    7,398.88x = 11,101.20 × 3,292
  4. Step 4: Simplify right side
    7,398.88x = 36,545,150.40
  5. Step 5: Solve for x
    x = 36,545,150.40/7,398.88
  6. Step 6: Final answer
    x = 4,939.28

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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.