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Finding the Fourth Proportional to 82,672.50, 124,008.81 and 27,268.50

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Solution

The fourth proportional to 82,672.50, 124,008.81 and 27,268.50 is: 40,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,672.50 : 124,008.81 = 27,268.50 : x
  2. Step 2: Convert to fraction form
    82,672.50/124,008.81 = 27,268.50/x
  3. Step 3: Cross multiply
    82,672.50x = 124,008.81 × 27,268.50
  4. Step 4: Simplify right side
    82,672.50x = 3,381,534,235.49
  5. Step 5: Solve for x
    x = 3,381,534,235.49/82,672.50
  6. Step 6: Final answer
    x = 40,902.77

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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.