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Finding the Fourth Proportional to 2,070.48, 3,104.76 and 702.48

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Solution

The fourth proportional to 2,070.48, 3,104.76 and 702.48 is: 1,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.48 : 3,104.76 = 702.48 : x
  2. Step 2: Convert to fraction form
    2,070.48/3,104.76 = 702.48/x
  3. Step 3: Cross multiply
    2,070.48x = 3,104.76 × 702.48
  4. Step 4: Simplify right side
    2,070.48x = 2,181,031.80
  5. Step 5: Solve for x
    x = 2,181,031.80/2,070.48
  6. Step 6: Final answer
    x = 1,053.39

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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.