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Finding the Fourth Proportional to 1,352.59, 2,031.19 and 737.50

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Solution

The fourth proportional to 1,352.59, 2,031.19 and 737.50 is: 1,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.59 : 2,031.19 = 737.50 : x
  2. Step 2: Convert to fraction form
    1,352.59/2,031.19 = 737.50/x
  3. Step 3: Cross multiply
    1,352.59x = 2,031.19 × 737.50
  4. Step 4: Simplify right side
    1,352.59x = 1,497,992.47
  5. Step 5: Solve for x
    x = 1,497,992.47/1,352.59
  6. Step 6: Final answer
    x = 1,107.50

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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.