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Finding the Fourth Proportional to 7,045.08, 9,721.99 and 4,691.49

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Solution

The fourth proportional to 7,045.08, 9,721.99 and 4,691.49 is: 6,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.08 : 9,721.99 = 4,691.49 : x
  2. Step 2: Convert to fraction form
    7,045.08/9,721.99 = 4,691.49/x
  3. Step 3: Cross multiply
    7,045.08x = 9,721.99 × 4,691.49
  4. Step 4: Simplify right side
    7,045.08x = 45,610,546.80
  5. Step 5: Solve for x
    x = 45,610,546.80/7,045.08
  6. Step 6: Final answer
    x = 6,474.10

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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.