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Finding the Fourth Proportional to 72,997.80, 109,496.69 and 17,593.80

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Solution

The fourth proportional to 72,997.80, 109,496.69 and 17,593.80 is: 26,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,997.80 : 109,496.69 = 17,593.80 : x
  2. Step 2: Convert to fraction form
    72,997.80/109,496.69 = 17,593.80/x
  3. Step 3: Cross multiply
    72,997.80x = 109,496.69 × 17,593.80
  4. Step 4: Simplify right side
    72,997.80x = 1,926,462,864.52
  5. Step 5: Solve for x
    x = 1,926,462,864.52/72,997.80
  6. Step 6: Final answer
    x = 26,390.70

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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.