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Finding the Fourth Proportional to 73,121.77, 109,682.68 and 26,374.64

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Solution

The fourth proportional to 73,121.77, 109,682.68 and 26,374.64 is: 39,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,121.77 : 109,682.68 = 26,374.64 : x
  2. Step 2: Convert to fraction form
    73,121.77/109,682.68 = 26,374.64/x
  3. Step 3: Cross multiply
    73,121.77x = 109,682.68 × 26,374.64
  4. Step 4: Simplify right side
    73,121.77x = 2,892,841,199.24
  5. Step 5: Solve for x
    x = 2,892,841,199.24/73,121.77
  6. Step 6: Final answer
    x = 39,561.97

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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.