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Finding the Fourth Proportional to 2,088.82, 3,133.28 and 702.20

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Solution

The fourth proportional to 2,088.82, 3,133.28 and 702.20 is: 1,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.82 : 3,133.28 = 702.20 : x
  2. Step 2: Convert to fraction form
    2,088.82/3,133.28 = 702.20/x
  3. Step 3: Cross multiply
    2,088.82x = 3,133.28 × 702.20
  4. Step 4: Simplify right side
    2,088.82x = 2,200,189.22
  5. Step 5: Solve for x
    x = 2,200,189.22/2,088.82
  6. Step 6: Final answer
    x = 1,053.32

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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.