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Finding the Fourth Proportional to 8,798,894.20, 13,187,843.70 and 7,896,100.60

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Solution

The fourth proportional to 8,798,894.20, 13,187,843.70 and 7,896,100.60 is: 11,834,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,894.20 : 13,187,843.70 = 7,896,100.60 : x
  2. Step 2: Convert to fraction form
    8,798,894.20/13,187,843.70 = 7,896,100.60/x
  3. Step 3: Cross multiply
    8,798,894.20x = 13,187,843.70 × 7,896,100.60
  4. Step 4: Simplify right side
    8,798,894.20x = 104,132,540,552,276.20
  5. Step 5: Solve for x
    x = 104,132,540,552,276.20/8,798,894.20
  6. Step 6: Final answer
    x = 11,834,730.39

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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.