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Finding the Fourth Proportional to 18,775.65, 25,910.01 and 10,277.57

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Solution

The fourth proportional to 18,775.65, 25,910.01 and 10,277.57 is: 14,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.65 : 25,910.01 = 10,277.57 : x
  2. Step 2: Convert to fraction form
    18,775.65/25,910.01 = 10,277.57/x
  3. Step 3: Cross multiply
    18,775.65x = 25,910.01 × 10,277.57
  4. Step 4: Simplify right side
    18,775.65x = 266,291,811.93
  5. Step 5: Solve for x
    x = 266,291,811.93/18,775.65
  6. Step 6: Final answer
    x = 14,182.83

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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.