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Finding the Fourth Proportional to 1,707.92, 2,558.64 and 1,013.12

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Solution

The fourth proportional to 1,707.92, 2,558.64 and 1,013.12 is: 1,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.92 : 2,558.64 = 1,013.12 : x
  2. Step 2: Convert to fraction form
    1,707.92/2,558.64 = 1,013.12/x
  3. Step 3: Cross multiply
    1,707.92x = 2,558.64 × 1,013.12
  4. Step 4: Simplify right side
    1,707.92x = 2,592,209.36
  5. Step 5: Solve for x
    x = 2,592,209.36/1,707.92
  6. Step 6: Final answer
    x = 1,517.76

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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.