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Finding the Fourth Proportional to 25,391.88, 38,102.22 and 13,704.84

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Solution

The fourth proportional to 25,391.88, 38,102.22 and 13,704.84 is: 20,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,391.88 : 38,102.22 = 13,704.84 : x
  2. Step 2: Convert to fraction form
    25,391.88/38,102.22 = 13,704.84/x
  3. Step 3: Cross multiply
    25,391.88x = 38,102.22 × 13,704.84
  4. Step 4: Simplify right side
    25,391.88x = 522,184,828.74
  5. Step 5: Solve for x
    x = 522,184,828.74/25,391.88
  6. Step 6: Final answer
    x = 20,565.03

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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.