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Finding the Fourth Proportional to 25,309.47, 37,965.25 and 8,680.94

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Solution

The fourth proportional to 25,309.47, 37,965.25 and 8,680.94 is: 13,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.47 : 37,965.25 = 8,680.94 : x
  2. Step 2: Convert to fraction form
    25,309.47/37,965.25 = 8,680.94/x
  3. Step 3: Cross multiply
    25,309.47x = 37,965.25 × 8,680.94
  4. Step 4: Simplify right side
    25,309.47x = 329,574,020.73
  5. Step 5: Solve for x
    x = 329,574,020.73/25,309.47
  6. Step 6: Final answer
    x = 13,021.77

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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.