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Finding the Fourth Proportional to 7,044.12, 9,721.08 and 4,248

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Solution

The fourth proportional to 7,044.12, 9,721.08 and 4,248 is: 5,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.12 : 9,721.08 = 4,248 : x
  2. Step 2: Convert to fraction form
    7,044.12/9,721.08 = 4,248/x
  3. Step 3: Cross multiply
    7,044.12x = 9,721.08 × 4,248
  4. Step 4: Simplify right side
    7,044.12x = 41,295,147.84
  5. Step 5: Solve for x
    x = 41,295,147.84/7,044.12
  6. Step 6: Final answer
    x = 5,862.36

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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.