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Finding the Fourth Proportional to 2,339.76, 3,510.65 and 1,108.04

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Solution

The fourth proportional to 2,339.76, 3,510.65 and 1,108.04 is: 1,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.76 : 3,510.65 = 1,108.04 : x
  2. Step 2: Convert to fraction form
    2,339.76/3,510.65 = 1,108.04/x
  3. Step 3: Cross multiply
    2,339.76x = 3,510.65 × 1,108.04
  4. Step 4: Simplify right side
    2,339.76x = 3,889,952.17
  5. Step 5: Solve for x
    x = 3,889,952.17/2,339.76
  6. Step 6: Final answer
    x = 1,662.54

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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.