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Finding the Fourth Proportional to 27,029.45, 40,545.21 and 7,308.01

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Solution

The fourth proportional to 27,029.45, 40,545.21 and 7,308.01 is: 10,962.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,029.45 : 40,545.21 = 7,308.01 : x
  2. Step 2: Convert to fraction form
    27,029.45/40,545.21 = 7,308.01/x
  3. Step 3: Cross multiply
    27,029.45x = 40,545.21 × 7,308.01
  4. Step 4: Simplify right side
    27,029.45x = 296,304,800.13
  5. Step 5: Solve for x
    x = 296,304,800.13/27,029.45
  6. Step 6: Final answer
    x = 10,962.29

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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.