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Finding the Fourth Proportional to 2,335.68, 3,503.52 and 1,310.40

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Solution

The fourth proportional to 2,335.68, 3,503.52 and 1,310.40 is: 1,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.68 : 3,503.52 = 1,310.40 : x
  2. Step 2: Convert to fraction form
    2,335.68/3,503.52 = 1,310.40/x
  3. Step 3: Cross multiply
    2,335.68x = 3,503.52 × 1,310.40
  4. Step 4: Simplify right side
    2,335.68x = 4,591,012.61
  5. Step 5: Solve for x
    x = 4,591,012.61/2,335.68
  6. Step 6: Final answer
    x = 1,965.60

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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.