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Finding the Fourth Proportional to 5,098.76, 7,648.23 and 1,400.97

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Solution

The fourth proportional to 5,098.76, 7,648.23 and 1,400.97 is: 2,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.76 : 7,648.23 = 1,400.97 : x
  2. Step 2: Convert to fraction form
    5,098.76/7,648.23 = 1,400.97/x
  3. Step 3: Cross multiply
    5,098.76x = 7,648.23 × 1,400.97
  4. Step 4: Simplify right side
    5,098.76x = 10,714,949.27
  5. Step 5: Solve for x
    x = 10,714,949.27/5,098.76
  6. Step 6: Final answer
    x = 2,101.48

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1.5x scale

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.