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Finding the Fourth Proportional to 48,170, 66,515.64 and 30,294.92

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Solution

The fourth proportional to 48,170, 66,515.64 and 30,294.92 is: 41,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,170 : 66,515.64 = 30,294.92 : x
  2. Step 2: Convert to fraction form
    48,170/66,515.64 = 30,294.92/x
  3. Step 3: Cross multiply
    48,170x = 66,515.64 × 30,294.92
  4. Step 4: Simplify right side
    48,170x = 2,015,085,992.55
  5. Step 5: Solve for x
    x = 2,015,085,992.55/48,170
  6. Step 6: Final answer
    x = 41,832.80

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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.