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Finding the Fourth Proportional to 9,187.79, 13,780.65 and 2,524.79

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Solution

The fourth proportional to 9,187.79, 13,780.65 and 2,524.79 is: 3,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.79 : 13,780.65 = 2,524.79 : x
  2. Step 2: Convert to fraction form
    9,187.79/13,780.65 = 2,524.79/x
  3. Step 3: Cross multiply
    9,187.79x = 13,780.65 × 2,524.79
  4. Step 4: Simplify right side
    9,187.79x = 34,793,291.23
  5. Step 5: Solve for x
    x = 34,793,291.23/9,187.79
  6. Step 6: Final answer
    x = 3,786.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.