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Finding the Fourth Proportional to 8,814,892.80, 13,200,220.80 and 5,806,790.40

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Solution

The fourth proportional to 8,814,892.80, 13,200,220.80 and 5,806,790.40 is: 8,695,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814,892.80 : 13,200,220.80 = 5,806,790.40 : x
  2. Step 2: Convert to fraction form
    8,814,892.80/13,200,220.80 = 5,806,790.40/x
  3. Step 3: Cross multiply
    8,814,892.80x = 13,200,220.80 × 5,806,790.40
  4. Step 4: Simplify right side
    8,814,892.80x = 76,650,915,419,320.33
  5. Step 5: Solve for x
    x = 76,650,915,419,320.33/8,814,892.80
  6. Step 6: Final answer
    x = 8,695,615.15

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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.