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Finding the Fourth Proportional to 25,865.66, 38,797.72 and 7,146.83

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Solution

The fourth proportional to 25,865.66, 38,797.72 and 7,146.83 is: 10,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.66 : 38,797.72 = 7,146.83 : x
  2. Step 2: Convert to fraction form
    25,865.66/38,797.72 = 7,146.83/x
  3. Step 3: Cross multiply
    25,865.66x = 38,797.72 × 7,146.83
  4. Step 4: Simplify right side
    25,865.66x = 277,280,788.35
  5. Step 5: Solve for x
    x = 277,280,788.35/25,865.66
  6. Step 6: Final answer
    x = 10,720.03

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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.