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Finding the Fourth Proportional to 13,894,760.20, 20,860,802.70 and 8,868,353.80

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Solution

The fourth proportional to 13,894,760.20, 20,860,802.70 and 8,868,353.80 is: 13,314,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894,760.20 : 20,860,802.70 = 8,868,353.80 : x
  2. Step 2: Convert to fraction form
    13,894,760.20/20,860,802.70 = 8,868,353.80/x
  3. Step 3: Cross multiply
    13,894,760.20x = 20,860,802.70 × 8,868,353.80
  4. Step 4: Simplify right side
    13,894,760.20x = 185,000,978,895,595.28
  5. Step 5: Solve for x
    x = 185,000,978,895,595.28/13,894,760.20
  6. Step 6: Final answer
    x = 13,314,442.01

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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.