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Finding the Fourth Proportional to 82,017.70, 123,026.55 and 26,613.70

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Solution

The fourth proportional to 82,017.70, 123,026.55 and 26,613.70 is: 39,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,017.70 : 123,026.55 = 26,613.70 : x
  2. Step 2: Convert to fraction form
    82,017.70/123,026.55 = 26,613.70/x
  3. Step 3: Cross multiply
    82,017.70x = 123,026.55 × 26,613.70
  4. Step 4: Simplify right side
    82,017.70x = 3,274,191,693.74
  5. Step 5: Solve for x
    x = 3,274,191,693.74/82,017.70
  6. Step 6: Final answer
    x = 39,920.55

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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.