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Finding the Fourth Proportional to 8,304,759.90, 12,458,889.45 and 3,509,981.10

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Solution

The fourth proportional to 8,304,759.90, 12,458,889.45 and 3,509,981.10 is: 5,265,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,304,759.90 : 12,458,889.45 = 3,509,981.10 : x
  2. Step 2: Convert to fraction form
    8,304,759.90/12,458,889.45 = 3,509,981.10/x
  3. Step 3: Cross multiply
    8,304,759.90x = 12,458,889.45 × 3,509,981.10
  4. Step 4: Simplify right side
    8,304,759.90x = 43,730,466,496,489.39
  5. Step 5: Solve for x
    x = 43,730,466,496,489.39/8,304,759.90
  6. Step 6: Final answer
    x = 5,265,711.11

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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.