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Finding the Fourth Proportional to 34,167.80, 51,251.70 and 28,724.60

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Solution

The fourth proportional to 34,167.80, 51,251.70 and 28,724.60 is: 43,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,167.80 : 51,251.70 = 28,724.60 : x
  2. Step 2: Convert to fraction form
    34,167.80/51,251.70 = 28,724.60/x
  3. Step 3: Cross multiply
    34,167.80x = 51,251.70 × 28,724.60
  4. Step 4: Simplify right side
    34,167.80x = 1,472,184,581.82
  5. Step 5: Solve for x
    x = 1,472,184,581.82/34,167.80
  6. Step 6: Final answer
    x = 43,086.90

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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.