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Finding the Fourth Proportional to 3,294.92, 4,939.14 and 1,564.76

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Solution

The fourth proportional to 3,294.92, 4,939.14 and 1,564.76 is: 2,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,294.92 : 4,939.14 = 1,564.76 : x
  2. Step 2: Convert to fraction form
    3,294.92/4,939.14 = 1,564.76/x
  3. Step 3: Cross multiply
    3,294.92x = 4,939.14 × 1,564.76
  4. Step 4: Simplify right side
    3,294.92x = 7,728,568.71
  5. Step 5: Solve for x
    x = 7,728,568.71/3,294.92
  6. Step 6: Final answer
    x = 2,345.60

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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.