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Finding the Fourth Proportional to 34,171.70, 51,257.55 and 15,739.70

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Solution

The fourth proportional to 34,171.70, 51,257.55 and 15,739.70 is: 23,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,171.70 : 51,257.55 = 15,739.70 : x
  2. Step 2: Convert to fraction form
    34,171.70/51,257.55 = 15,739.70/x
  3. Step 3: Cross multiply
    34,171.70x = 51,257.55 × 15,739.70
  4. Step 4: Simplify right side
    34,171.70x = 806,778,459.74
  5. Step 5: Solve for x
    x = 806,778,459.74/34,171.70
  6. Step 6: Final answer
    x = 23,609.55

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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.