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Finding the Fourth Proportional to 83,285.70, 124,936.06 and 27,111.24

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Solution

The fourth proportional to 83,285.70, 124,936.06 and 27,111.24 is: 40,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,285.70 : 124,936.06 = 27,111.24 : x
  2. Step 2: Convert to fraction form
    83,285.70/124,936.06 = 27,111.24/x
  3. Step 3: Cross multiply
    83,285.70x = 124,936.06 × 27,111.24
  4. Step 4: Simplify right side
    83,285.70x = 3,387,171,507.31
  5. Step 5: Solve for x
    x = 3,387,171,507.31/83,285.70
  6. Step 6: Final answer
    x = 40,669.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.