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Finding the Fourth Proportional to 10,472.49, 15,707.12 and 3,452.63

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Solution

The fourth proportional to 10,472.49, 15,707.12 and 3,452.63 is: 5,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.49 : 15,707.12 = 3,452.63 : x
  2. Step 2: Convert to fraction form
    10,472.49/15,707.12 = 3,452.63/x
  3. Step 3: Cross multiply
    10,472.49x = 15,707.12 × 3,452.63
  4. Step 4: Simplify right side
    10,472.49x = 54,230,777.93
  5. Step 5: Solve for x
    x = 54,230,777.93/10,472.49
  6. Step 6: Final answer
    x = 5,178.40

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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.