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Finding the Fourth Proportional to 8,797,969.80, 13,196,954.70 and 8,656,252.20

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Solution

The fourth proportional to 8,797,969.80, 13,196,954.70 and 8,656,252.20 is: 12,984,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797,969.80 : 13,196,954.70 = 8,656,252.20 : x
  2. Step 2: Convert to fraction form
    8,797,969.80/13,196,954.70 = 8,656,252.20/x
  3. Step 3: Cross multiply
    8,797,969.80x = 13,196,954.70 × 8,656,252.20
  4. Step 4: Simplify right side
    8,797,969.80x = 114,236,168,155,175.33
  5. Step 5: Solve for x
    x = 114,236,168,155,175.33/8,797,969.80
  6. Step 6: Final answer
    x = 12,984,378.30

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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.