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Finding the Fourth Proportional to 39,956.74, 59,956.04 and 15,014

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Solution

The fourth proportional to 39,956.74, 59,956.04 and 15,014 is: 22,528.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.74 : 59,956.04 = 15,014 : x
  2. Step 2: Convert to fraction form
    39,956.74/59,956.04 = 15,014/x
  3. Step 3: Cross multiply
    39,956.74x = 59,956.04 × 15,014
  4. Step 4: Simplify right side
    39,956.74x = 900,179,984.56
  5. Step 5: Solve for x
    x = 900,179,984.56/39,956.74
  6. Step 6: Final answer
    x = 22,528.86

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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.