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Finding the Fourth Proportional to 82,607.73, 113,979.51 and 48,147.11

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Solution

The fourth proportional to 82,607.73, 113,979.51 and 48,147.11 is: 66,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,607.73 : 113,979.51 = 48,147.11 : x
  2. Step 2: Convert to fraction form
    82,607.73/113,979.51 = 48,147.11/x
  3. Step 3: Cross multiply
    82,607.73x = 113,979.51 × 48,147.11
  4. Step 4: Simplify right side
    82,607.73x = 5,487,783,435.82
  5. Step 5: Solve for x
    x = 5,487,783,435.82/82,607.73
  6. Step 6: Final answer
    x = 66,431.84

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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.