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Finding the Fourth Proportional to 48,425.58, 66,858.62 and 43,380.90

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Solution

The fourth proportional to 48,425.58, 66,858.62 and 43,380.90 is: 59,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,425.58 : 66,858.62 = 43,380.90 : x
  2. Step 2: Convert to fraction form
    48,425.58/66,858.62 = 43,380.90/x
  3. Step 3: Cross multiply
    48,425.58x = 66,858.62 × 43,380.90
  4. Step 4: Simplify right side
    48,425.58x = 2,900,386,891.45
  5. Step 5: Solve for x
    x = 2,900,386,891.45/48,425.58
  6. Step 6: Final answer
    x = 59,893.69

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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.