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Finding the Fourth Proportional to 2,088.92, 3,132.80 and 702.28

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Solution

The fourth proportional to 2,088.92, 3,132.80 and 702.28 is: 1,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.92 : 3,132.80 = 702.28 : x
  2. Step 2: Convert to fraction form
    2,088.92/3,132.80 = 702.28/x
  3. Step 3: Cross multiply
    2,088.92x = 3,132.80 × 702.28
  4. Step 4: Simplify right side
    2,088.92x = 2,200,102.78
  5. Step 5: Solve for x
    x = 2,200,102.78/2,088.92
  6. Step 6: Final answer
    x = 1,053.23

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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.