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Finding the Fourth Proportional to 26,712.69, 40,068.95 and 7,992.73

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Solution

The fourth proportional to 26,712.69, 40,068.95 and 7,992.73 is: 11,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,712.69 : 40,068.95 = 7,992.73 : x
  2. Step 2: Convert to fraction form
    26,712.69/40,068.95 = 7,992.73/x
  3. Step 3: Cross multiply
    26,712.69x = 40,068.95 × 7,992.73
  4. Step 4: Simplify right side
    26,712.69x = 320,260,150.91
  5. Step 5: Solve for x
    x = 320,260,150.91/26,712.69
  6. Step 6: Final answer
    x = 11,989.07

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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.