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Finding the Fourth Proportional to 8,696,100.80, 13,028,404.80 and 7,436,388.80

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Solution

The fourth proportional to 8,696,100.80, 13,028,404.80 and 7,436,388.80 is: 11,141,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696,100.80 : 13,028,404.80 = 7,436,388.80 : x
  2. Step 2: Convert to fraction form
    8,696,100.80/13,028,404.80 = 7,436,388.80/x
  3. Step 3: Cross multiply
    8,696,100.80x = 13,028,404.80 × 7,436,388.80
  4. Step 4: Simplify right side
    8,696,100.80x = 96,884,283,536,586.25
  5. Step 5: Solve for x
    x = 96,884,283,536,586.25/8,696,100.80
  6. Step 6: Final answer
    x = 11,141,117.81

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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.