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Finding the Fourth Proportional to 8,889,338.40, 13,334,590.80 and 2,499,799.20

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Solution

The fourth proportional to 8,889,338.40, 13,334,590.80 and 2,499,799.20 is: 3,749,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,338.40 : 13,334,590.80 = 2,499,799.20 : x
  2. Step 2: Convert to fraction form
    8,889,338.40/13,334,590.80 = 2,499,799.20/x
  3. Step 3: Cross multiply
    8,889,338.40x = 13,334,590.80 × 2,499,799.20
  4. Step 4: Simplify right side
    8,889,338.40x = 33,333,799,414,167.36
  5. Step 5: Solve for x
    x = 33,333,799,414,167.36/8,889,338.40
  6. Step 6: Final answer
    x = 3,749,862.80

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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.