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Finding the Fourth Proportional to 25,950.71, 38,917.86 and 9,310.38

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Solution

The fourth proportional to 25,950.71, 38,917.86 and 9,310.38 is: 13,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,950.71 : 38,917.86 = 9,310.38 : x
  2. Step 2: Convert to fraction form
    25,950.71/38,917.86 = 9,310.38/x
  3. Step 3: Cross multiply
    25,950.71x = 38,917.86 × 9,310.38
  4. Step 4: Simplify right side
    25,950.71x = 362,340,065.39
  5. Step 5: Solve for x
    x = 362,340,065.39/25,950.71
  6. Step 6: Final answer
    x = 13,962.63

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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.