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Finding the Fourth Proportional to 18,102.80, 24,985.24 and 10,550.72

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Solution

The fourth proportional to 18,102.80, 24,985.24 and 10,550.72 is: 14,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.80 : 24,985.24 = 10,550.72 : x
  2. Step 2: Convert to fraction form
    18,102.80/24,985.24 = 10,550.72/x
  3. Step 3: Cross multiply
    18,102.80x = 24,985.24 × 10,550.72
  4. Step 4: Simplify right side
    18,102.80x = 263,612,120.07
  5. Step 5: Solve for x
    x = 263,612,120.07/18,102.80
  6. Step 6: Final answer
    x = 14,561.96

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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.