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Finding the Fourth Proportional to 47,611.62, 65,703 and 26,390.70

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Solution

The fourth proportional to 47,611.62, 65,703 and 26,390.70 is: 36,418.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,611.62 : 65,703 = 26,390.70 : x
  2. Step 2: Convert to fraction form
    47,611.62/65,703 = 26,390.70/x
  3. Step 3: Cross multiply
    47,611.62x = 65,703 × 26,390.70
  4. Step 4: Simplify right side
    47,611.62x = 1,733,948,162.10
  5. Step 5: Solve for x
    x = 1,733,948,162.10/47,611.62
  6. Step 6: Final answer
    x = 36,418.59

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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.