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Finding the Fourth Proportional to 2,331.62, 3,497.32 and 870.66

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Solution

The fourth proportional to 2,331.62, 3,497.32 and 870.66 is: 1,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.62 : 3,497.32 = 870.66 : x
  2. Step 2: Convert to fraction form
    2,331.62/3,497.32 = 870.66/x
  3. Step 3: Cross multiply
    2,331.62x = 3,497.32 × 870.66
  4. Step 4: Simplify right side
    2,331.62x = 3,044,976.63
  5. Step 5: Solve for x
    x = 3,044,976.63/2,331.62
  6. Step 6: Final answer
    x = 1,305.95

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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.