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Finding the Fourth Proportional to 8,394,952.80, 12,573,766.80 and 6,495,535.20

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Solution

The fourth proportional to 8,394,952.80, 12,573,766.80 and 6,495,535.20 is: 9,728,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394,952.80 : 12,573,766.80 = 6,495,535.20 : x
  2. Step 2: Convert to fraction form
    8,394,952.80/12,573,766.80 = 6,495,535.20/x
  3. Step 3: Cross multiply
    8,394,952.80x = 12,573,766.80 × 6,495,535.20
  4. Step 4: Simplify right side
    8,394,952.80x = 81,673,344,845,991.36
  5. Step 5: Solve for x
    x = 81,673,344,845,991.36/8,394,952.80
  6. Step 6: Final answer
    x = 9,728,862.90

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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.