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Finding the Fourth Proportional to 7,242,551.70, 10,863,827.55 and 2,193,862.20

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Solution

The fourth proportional to 7,242,551.70, 10,863,827.55 and 2,193,862.20 is: 3,290,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242,551.70 : 10,863,827.55 = 2,193,862.20 : x
  2. Step 2: Convert to fraction form
    7,242,551.70/10,863,827.55 = 2,193,862.20/x
  3. Step 3: Cross multiply
    7,242,551.70x = 10,863,827.55 × 2,193,862.20
  4. Step 4: Simplify right side
    7,242,551.70x = 23,833,740,609,263.61
  5. Step 5: Solve for x
    x = 23,833,740,609,263.61/7,242,551.70
  6. Step 6: Final answer
    x = 3,290,793.30

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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.