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Finding the Fourth Proportional to 10,474.67, 15,712.49 and 3,359.63

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Solution

The fourth proportional to 10,474.67, 15,712.49 and 3,359.63 is: 5,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,474.67 : 15,712.49 = 3,359.63 : x
  2. Step 2: Convert to fraction form
    10,474.67/15,712.49 = 3,359.63/x
  3. Step 3: Cross multiply
    10,474.67x = 15,712.49 × 3,359.63
  4. Step 4: Simplify right side
    10,474.67x = 52,788,200.46
  5. Step 5: Solve for x
    x = 52,788,200.46/10,474.67
  6. Step 6: Final answer
    x = 5,039.60

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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.