Home / 82,276.35-123,414.52-19,946.85

Finding the Fourth Proportional to 82,276.35, 123,414.52 and 19,946.85

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Solution

The fourth proportional to 82,276.35, 123,414.52 and 19,946.85 is: 29,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,276.35 : 123,414.52 = 19,946.85 : x
  2. Step 2: Convert to fraction form
    82,276.35/123,414.52 = 19,946.85/x
  3. Step 3: Cross multiply
    82,276.35x = 123,414.52 × 19,946.85
  4. Step 4: Simplify right side
    82,276.35x = 2,461,730,918.26
  5. Step 5: Solve for x
    x = 2,461,730,918.26/82,276.35
  6. Step 6: Final answer
    x = 29,920.27

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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.