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Finding the Fourth Proportional to 1,751.92, 2,417.64 and 965.92

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Solution

The fourth proportional to 1,751.92, 2,417.64 and 965.92 is: 1,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.92 : 2,417.64 = 965.92 : x
  2. Step 2: Convert to fraction form
    1,751.92/2,417.64 = 965.92/x
  3. Step 3: Cross multiply
    1,751.92x = 2,417.64 × 965.92
  4. Step 4: Simplify right side
    1,751.92x = 2,335,246.83
  5. Step 5: Solve for x
    x = 2,335,246.83/1,751.92
  6. Step 6: Final answer
    x = 1,332.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.