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Finding the Fourth Proportional to 51,314.90, 76,979.55 and 16,250.90

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Solution

The fourth proportional to 51,314.90, 76,979.55 and 16,250.90 is: 24,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,314.90 : 76,979.55 = 16,250.90 : x
  2. Step 2: Convert to fraction form
    51,314.90/76,979.55 = 16,250.90/x
  3. Step 3: Cross multiply
    51,314.90x = 76,979.55 × 16,250.90
  4. Step 4: Simplify right side
    51,314.90x = 1,250,986,969.10
  5. Step 5: Solve for x
    x = 1,250,986,969.10/51,314.90
  6. Step 6: Final answer
    x = 24,378.63

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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.