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Finding the Fourth Proportional to 8,990,531.80, 13,485,797.70 and 4,443,758.80

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Solution

The fourth proportional to 8,990,531.80, 13,485,797.70 and 4,443,758.80 is: 6,665,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,531.80 : 13,485,797.70 = 4,443,758.80 : x
  2. Step 2: Convert to fraction form
    8,990,531.80/13,485,797.70 = 4,443,758.80/x
  3. Step 3: Cross multiply
    8,990,531.80x = 13,485,797.70 × 4,443,758.80
  4. Step 4: Simplify right side
    8,990,531.80x = 59,927,632,204,394.76
  5. Step 5: Solve for x
    x = 59,927,632,204,394.76/8,990,531.80
  6. Step 6: Final answer
    x = 6,665,638.20

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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.