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Finding the Fourth Proportional to 8,584,839.20, 12,036,469.60 and 8,584,839.20

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Solution

The fourth proportional to 8,584,839.20, 12,036,469.60 and 8,584,839.20 is: 12,036,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584,839.20 : 12,036,469.60 = 8,584,839.20 : x
  2. Step 2: Convert to fraction form
    8,584,839.20/12,036,469.60 = 8,584,839.20/x
  3. Step 3: Cross multiply
    8,584,839.20x = 12,036,469.60 × 8,584,839.20
  4. Step 4: Simplify right side
    8,584,839.20x = 103,331,156,051,688.31
  5. Step 5: Solve for x
    x = 103,331,156,051,688.31/8,584,839.20
  6. Step 6: Final answer
    x = 12,036,469.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.