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Finding the Fourth Proportional to 55,191.72, 82,713.06 and 39,574.92

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Solution

The fourth proportional to 55,191.72, 82,713.06 and 39,574.92 is: 59,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.72 : 82,713.06 = 39,574.92 : x
  2. Step 2: Convert to fraction form
    55,191.72/82,713.06 = 39,574.92/x
  3. Step 3: Cross multiply
    55,191.72x = 82,713.06 × 39,574.92
  4. Step 4: Simplify right side
    55,191.72x = 3,273,362,732.46
  5. Step 5: Solve for x
    x = 3,273,362,732.46/55,191.72
  6. Step 6: Final answer
    x = 59,308.95

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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.