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Finding the Fourth Proportional to 2,755,117.80, 3,860,314.20 and 2,755,117.80

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Solution

The fourth proportional to 2,755,117.80, 3,860,314.20 and 2,755,117.80 is: 3,860,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755,117.80 : 3,860,314.20 = 2,755,117.80 : x
  2. Step 2: Convert to fraction form
    2,755,117.80/3,860,314.20 = 2,755,117.80/x
  3. Step 3: Cross multiply
    2,755,117.80x = 3,860,314.20 × 2,755,117.80
  4. Step 4: Simplify right side
    2,755,117.80x = 10,635,620,366,012.76
  5. Step 5: Solve for x
    x = 10,635,620,366,012.76/2,755,117.80
  6. Step 6: Final answer
    x = 3,860,314.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.