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Finding the Fourth Proportional to 25,649.84, 35,396.93 and 15,039.65

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Solution

The fourth proportional to 25,649.84, 35,396.93 and 15,039.65 is: 20,754.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,649.84 : 35,396.93 = 15,039.65 : x
  2. Step 2: Convert to fraction form
    25,649.84/35,396.93 = 15,039.65/x
  3. Step 3: Cross multiply
    25,649.84x = 35,396.93 × 15,039.65
  4. Step 4: Simplify right side
    25,649.84x = 532,357,438.27
  5. Step 5: Solve for x
    x = 532,357,438.27/25,649.84
  6. Step 6: Final answer
    x = 20,754.81

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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.