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Finding the Fourth Proportional to 18,752.99, 25,770.92 and 17,885.70

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Solution

The fourth proportional to 18,752.99, 25,770.92 and 17,885.70 is: 24,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.99 : 25,770.92 = 17,885.70 : x
  2. Step 2: Convert to fraction form
    18,752.99/25,770.92 = 17,885.70/x
  3. Step 3: Cross multiply
    18,752.99x = 25,770.92 × 17,885.70
  4. Step 4: Simplify right side
    18,752.99x = 460,930,854.42
  5. Step 5: Solve for x
    x = 460,930,854.42/18,752.99
  6. Step 6: Final answer
    x = 24,579.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.