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Finding the Fourth Proportional to 18,755.70, 25,885.12 and 10,797.76

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Solution

The fourth proportional to 18,755.70, 25,885.12 and 10,797.76 is: 14,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.70 : 25,885.12 = 10,797.76 : x
  2. Step 2: Convert to fraction form
    18,755.70/25,885.12 = 10,797.76/x
  3. Step 3: Cross multiply
    18,755.70x = 25,885.12 × 10,797.76
  4. Step 4: Simplify right side
    18,755.70x = 279,501,193.34
  5. Step 5: Solve for x
    x = 279,501,193.34/18,755.70
  6. Step 6: Final answer
    x = 14,902.20

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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.