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Finding the Fourth Proportional to 10,463.60, 15,695.38 and 2,672.40

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Solution

The fourth proportional to 10,463.60, 15,695.38 and 2,672.40 is: 4,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,463.60 : 15,695.38 = 2,672.40 : x
  2. Step 2: Convert to fraction form
    10,463.60/15,695.38 = 2,672.40/x
  3. Step 3: Cross multiply
    10,463.60x = 15,695.38 × 2,672.40
  4. Step 4: Simplify right side
    10,463.60x = 41,944,333.51
  5. Step 5: Solve for x
    x = 41,944,333.51/10,463.60
  6. Step 6: Final answer
    x = 4,008.59

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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.