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Finding the Fourth Proportional to 39,173.56, 58,769.04 and 12,877.24

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Solution

The fourth proportional to 39,173.56, 58,769.04 and 12,877.24 is: 19,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,173.56 : 58,769.04 = 12,877.24 : x
  2. Step 2: Convert to fraction form
    39,173.56/58,769.04 = 12,877.24/x
  3. Step 3: Cross multiply
    39,173.56x = 58,769.04 × 12,877.24
  4. Step 4: Simplify right side
    39,173.56x = 756,783,032.65
  5. Step 5: Solve for x
    x = 756,783,032.65/39,173.56
  6. Step 6: Final answer
    x = 19,318.72

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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.