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Finding the Fourth Proportional to 15,204.40, 22,806.60 and 8,643.40

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Solution

The fourth proportional to 15,204.40, 22,806.60 and 8,643.40 is: 12,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.40 : 22,806.60 = 8,643.40 : x
  2. Step 2: Convert to fraction form
    15,204.40/22,806.60 = 8,643.40/x
  3. Step 3: Cross multiply
    15,204.40x = 22,806.60 × 8,643.40
  4. Step 4: Simplify right side
    15,204.40x = 197,126,566.44
  5. Step 5: Solve for x
    x = 197,126,566.44/15,204.40
  6. Step 6: Final answer
    x = 12,965.10

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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.