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Finding the Fourth Proportional to 25,936.81, 38,915.03 and 10,153.12

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Solution

The fourth proportional to 25,936.81, 38,915.03 and 10,153.12 is: 15,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,936.81 : 38,915.03 = 10,153.12 : x
  2. Step 2: Convert to fraction form
    25,936.81/38,915.03 = 10,153.12/x
  3. Step 3: Cross multiply
    25,936.81x = 38,915.03 × 10,153.12
  4. Step 4: Simplify right side
    25,936.81x = 395,109,015.92
  5. Step 5: Solve for x
    x = 395,109,015.92/25,936.81
  6. Step 6: Final answer
    x = 15,233.52

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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.