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Finding the Fourth Proportional to 18,104.93, 24,985.76 and 10,149.69

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Solution

The fourth proportional to 18,104.93, 24,985.76 and 10,149.69 is: 14,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.93 : 24,985.76 = 10,149.69 : x
  2. Step 2: Convert to fraction form
    18,104.93/24,985.76 = 10,149.69/x
  3. Step 3: Cross multiply
    18,104.93x = 24,985.76 × 10,149.69
  4. Step 4: Simplify right side
    18,104.93x = 253,597,667.67
  5. Step 5: Solve for x
    x = 253,597,667.67/18,104.93
  6. Step 6: Final answer
    x = 14,007.11

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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.