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Finding the Fourth Proportional to 51,379.92, 76,948.38 and 43,798.32

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Solution

The fourth proportional to 51,379.92, 76,948.38 and 43,798.32 is: 65,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.92 : 76,948.38 = 43,798.32 : x
  2. Step 2: Convert to fraction form
    51,379.92/76,948.38 = 43,798.32/x
  3. Step 3: Cross multiply
    51,379.92x = 76,948.38 × 43,798.32
  4. Step 4: Simplify right side
    51,379.92x = 3,370,209,770.72
  5. Step 5: Solve for x
    x = 3,370,209,770.72/51,379.92
  6. Step 6: Final answer
    x = 65,593.91

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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.