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Finding the Fourth Proportional to 4,918.98, 7,377.92 and 1,409.24

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Solution

The fourth proportional to 4,918.98, 7,377.92 and 1,409.24 is: 2,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.98 : 7,377.92 = 1,409.24 : x
  2. Step 2: Convert to fraction form
    4,918.98/7,377.92 = 1,409.24/x
  3. Step 3: Cross multiply
    4,918.98x = 7,377.92 × 1,409.24
  4. Step 4: Simplify right side
    4,918.98x = 10,397,259.98
  5. Step 5: Solve for x
    x = 10,397,259.98/4,918.98
  6. Step 6: Final answer
    x = 2,113.70

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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.