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Finding the Fourth Proportional to 9,937,974.60, 14,897,630.70 and 7,777,801.80

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Solution

The fourth proportional to 9,937,974.60, 14,897,630.70 and 7,777,801.80 is: 11,659,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937,974.60 : 14,897,630.70 = 7,777,801.80 : x
  2. Step 2: Convert to fraction form
    9,937,974.60/14,897,630.70 = 7,777,801.80/x
  3. Step 3: Cross multiply
    9,937,974.60x = 14,897,630.70 × 7,777,801.80
  4. Step 4: Simplify right side
    9,937,974.60x = 115,870,818,874,195.25
  5. Step 5: Solve for x
    x = 115,870,818,874,195.25/9,937,974.60
  6. Step 6: Final answer
    x = 11,659,399.78

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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.