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Finding the Fourth Proportional to 18,244.98, 25,178.04 and 9,861.48

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Solution

The fourth proportional to 18,244.98, 25,178.04 and 9,861.48 is: 13,608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,244.98 : 25,178.04 = 9,861.48 : x
  2. Step 2: Convert to fraction form
    18,244.98/25,178.04 = 9,861.48/x
  3. Step 3: Cross multiply
    18,244.98x = 25,178.04 × 9,861.48
  4. Step 4: Simplify right side
    18,244.98x = 248,292,737.90
  5. Step 5: Solve for x
    x = 248,292,737.90/18,244.98
  6. Step 6: Final answer
    x = 13,608.82

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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.