Home / 82,276.75-123,415.53-19,947.25

Finding the Fourth Proportional to 82,276.75, 123,415.53 and 19,947.25

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Solution

The fourth proportional to 82,276.75, 123,415.53 and 19,947.25 is: 29,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,276.75 : 123,415.53 = 19,947.25 : x
  2. Step 2: Convert to fraction form
    82,276.75/123,415.53 = 19,947.25/x
  3. Step 3: Cross multiply
    82,276.75x = 123,415.53 × 19,947.25
  4. Step 4: Simplify right side
    82,276.75x = 2,461,800,430.79
  5. Step 5: Solve for x
    x = 2,461,800,430.79/82,276.75
  6. Step 6: Final answer
    x = 29,920.97

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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.