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Finding the Fourth Proportional to 82,402.60, 123,587.70 and 26,998.60

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Solution

The fourth proportional to 82,402.60, 123,587.70 and 26,998.60 is: 40,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,402.60 : 123,587.70 = 26,998.60 : x
  2. Step 2: Convert to fraction form
    82,402.60/123,587.70 = 26,998.60/x
  3. Step 3: Cross multiply
    82,402.60x = 123,587.70 × 26,998.60
  4. Step 4: Simplify right side
    82,402.60x = 3,336,694,877.22
  5. Step 5: Solve for x
    x = 3,336,694,877.22/82,402.60
  6. Step 6: Final answer
    x = 40,492.59

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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.