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Finding the Fourth Proportional to 18,105.96, 24,985.19 and 10,553.52

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Solution

The fourth proportional to 18,105.96, 24,985.19 and 10,553.52 is: 14,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.96 : 24,985.19 = 10,553.52 : x
  2. Step 2: Convert to fraction form
    18,105.96/24,985.19 = 10,553.52/x
  3. Step 3: Cross multiply
    18,105.96x = 24,985.19 × 10,553.52
  4. Step 4: Simplify right side
    18,105.96x = 263,681,822.45
  5. Step 5: Solve for x
    x = 263,681,822.45/18,105.96
  6. Step 6: Final answer
    x = 14,563.26

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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.