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Finding the Fourth Proportional to 25,648.65, 35,396.51 and 15,039.09

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Solution

The fourth proportional to 25,648.65, 35,396.51 and 15,039.09 is: 20,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.65 : 35,396.51 = 15,039.09 : x
  2. Step 2: Convert to fraction form
    25,648.65/35,396.51 = 15,039.09/x
  3. Step 3: Cross multiply
    25,648.65x = 35,396.51 × 15,039.09
  4. Step 4: Simplify right side
    25,648.65x = 532,331,224.38
  5. Step 5: Solve for x
    x = 532,331,224.38/25,648.65
  6. Step 6: Final answer
    x = 20,754.75

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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.