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Finding the Fourth Proportional to 6,648,883.20, 9,973,843.20 and 2,862,489.60

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Solution

The fourth proportional to 6,648,883.20, 9,973,843.20 and 2,862,489.60 is: 4,293,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648,883.20 : 9,973,843.20 = 2,862,489.60 : x
  2. Step 2: Convert to fraction form
    6,648,883.20/9,973,843.20 = 2,862,489.60/x
  3. Step 3: Cross multiply
    6,648,883.20x = 9,973,843.20 × 2,862,489.60
  4. Step 4: Simplify right side
    6,648,883.20x = 28,550,022,432,030.72
  5. Step 5: Solve for x
    x = 28,550,022,432,030.72/6,648,883.20
  6. Step 6: Final answer
    x = 4,293,957.58

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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.