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Finding the Fourth Proportional to 15,224.55, 22,821.26 and 8,636.82

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Solution

The fourth proportional to 15,224.55, 22,821.26 and 8,636.82 is: 12,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.55 : 22,821.26 = 8,636.82 : x
  2. Step 2: Convert to fraction form
    15,224.55/22,821.26 = 8,636.82/x
  3. Step 3: Cross multiply
    15,224.55x = 22,821.26 × 8,636.82
  4. Step 4: Simplify right side
    15,224.55x = 197,103,071.61
  5. Step 5: Solve for x
    x = 197,103,071.61/15,224.55
  6. Step 6: Final answer
    x = 12,946.40

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1.5x scale

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.