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Finding the Fourth Proportional to 25,275.38, 37,913.97 and 9,478.80

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Solution

The fourth proportional to 25,275.38, 37,913.97 and 9,478.80 is: 14,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,275.38 : 37,913.97 = 9,478.80 : x
  2. Step 2: Convert to fraction form
    25,275.38/37,913.97 = 9,478.80/x
  3. Step 3: Cross multiply
    25,275.38x = 37,913.97 × 9,478.80
  4. Step 4: Simplify right side
    25,275.38x = 359,378,974.38
  5. Step 5: Solve for x
    x = 359,378,974.38/25,275.38
  6. Step 6: Final answer
    x = 14,218.54

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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.