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Finding the Fourth Proportional to 10,890,604.80, 16,335,907.20 and 10,722,643.20

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Solution

The fourth proportional to 10,890,604.80, 16,335,907.20 and 10,722,643.20 is: 16,083,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,604.80 : 16,335,907.20 = 10,722,643.20 : x
  2. Step 2: Convert to fraction form
    10,890,604.80/16,335,907.20 = 10,722,643.20/x
  3. Step 3: Cross multiply
    10,890,604.80x = 16,335,907.20 × 10,722,643.20
  4. Step 4: Simplify right side
    10,890,604.80x = 175,164,104,253,911.03
  5. Step 5: Solve for x
    x = 175,164,104,253,911.03/10,890,604.80
  6. Step 6: Final answer
    x = 16,083,964.80

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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.