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Finding the Fourth Proportional to 10,325.65, 15,489.06 and 2,929.53

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Solution

The fourth proportional to 10,325.65, 15,489.06 and 2,929.53 is: 4,394.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,325.65 : 15,489.06 = 2,929.53 : x
  2. Step 2: Convert to fraction form
    10,325.65/15,489.06 = 2,929.53/x
  3. Step 3: Cross multiply
    10,325.65x = 15,489.06 × 2,929.53
  4. Step 4: Simplify right side
    10,325.65x = 45,375,665.94
  5. Step 5: Solve for x
    x = 45,375,665.94/10,325.65
  6. Step 6: Final answer
    x = 4,394.46

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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.