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Finding the Fourth Proportional to 39,713.88, 59,464.08 and 20,954.88

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Solution

The fourth proportional to 39,713.88, 59,464.08 and 20,954.88 is: 31,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,713.88 : 59,464.08 = 20,954.88 : x
  2. Step 2: Convert to fraction form
    39,713.88/59,464.08 = 20,954.88/x
  3. Step 3: Cross multiply
    39,713.88x = 59,464.08 × 20,954.88
  4. Step 4: Simplify right side
    39,713.88x = 1,246,062,660.71
  5. Step 5: Solve for x
    x = 1,246,062,660.71/39,713.88
  6. Step 6: Final answer
    x = 31,376.00

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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.