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Finding the Fourth Proportional to 10,462.72, 15,694.08 and 3,888.76

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Solution

The fourth proportional to 10,462.72, 15,694.08 and 3,888.76 is: 5,833.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,462.72 : 15,694.08 = 3,888.76 : x
  2. Step 2: Convert to fraction form
    10,462.72/15,694.08 = 3,888.76/x
  3. Step 3: Cross multiply
    10,462.72x = 15,694.08 × 3,888.76
  4. Step 4: Simplify right side
    10,462.72x = 61,030,510.54
  5. Step 5: Solve for x
    x = 61,030,510.54/10,462.72
  6. Step 6: Final answer
    x = 5,833.14

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Similar ratio
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1.5x scale

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.