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Finding the Fourth Proportional to 48,858.90, 68,540.70 and 48,858.90

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Solution

The fourth proportional to 48,858.90, 68,540.70 and 48,858.90 is: 68,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,858.90 : 68,540.70 = 48,858.90 : x
  2. Step 2: Convert to fraction form
    48,858.90/68,540.70 = 48,858.90/x
  3. Step 3: Cross multiply
    48,858.90x = 68,540.70 × 48,858.90
  4. Step 4: Simplify right side
    48,858.90x = 3,348,823,207.23
  5. Step 5: Solve for x
    x = 3,348,823,207.23/48,858.90
  6. Step 6: Final answer
    x = 68,540.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.