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Finding the Fourth Proportional to 2,341.92, 3,513.40 and 881.08

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Solution

The fourth proportional to 2,341.92, 3,513.40 and 881.08 is: 1,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.92 : 3,513.40 = 881.08 : x
  2. Step 2: Convert to fraction form
    2,341.92/3,513.40 = 881.08/x
  3. Step 3: Cross multiply
    2,341.92x = 3,513.40 × 881.08
  4. Step 4: Simplify right side
    2,341.92x = 3,095,586.47
  5. Step 5: Solve for x
    x = 3,095,586.47/2,341.92
  6. Step 6: Final answer
    x = 1,321.82

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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.