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Finding the Fourth Proportional to 18,104.61, 24,984.21 and 10,146.80

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Solution

The fourth proportional to 18,104.61, 24,984.21 and 10,146.80 is: 14,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.61 : 24,984.21 = 10,146.80 : x
  2. Step 2: Convert to fraction form
    18,104.61/24,984.21 = 10,146.80/x
  3. Step 3: Cross multiply
    18,104.61x = 24,984.21 × 10,146.80
  4. Step 4: Simplify right side
    18,104.61x = 253,509,882.54
  5. Step 5: Solve for x
    x = 253,509,882.54/18,104.61
  6. Step 6: Final answer
    x = 14,002.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.