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Finding the Fourth Proportional to 75,015, 103,523.42 and 41,021.51

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Solution

The fourth proportional to 75,015, 103,523.42 and 41,021.51 is: 56,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015 : 103,523.42 = 41,021.51 : x
  2. Step 2: Convert to fraction form
    75,015/103,523.42 = 41,021.51/x
  3. Step 3: Cross multiply
    75,015x = 103,523.42 × 41,021.51
  4. Step 4: Simplify right side
    75,015x = 4,246,686,593.70
  5. Step 5: Solve for x
    x = 4,246,686,593.70/75,015
  6. Step 6: Final answer
    x = 56,611.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.