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Finding the Fourth Proportional to 75,622.95, 113,425.77 and 20,223.27

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Solution

The fourth proportional to 75,622.95, 113,425.77 and 20,223.27 is: 30,332.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,622.95 : 113,425.77 = 20,223.27 : x
  2. Step 2: Convert to fraction form
    75,622.95/113,425.77 = 20,223.27/x
  3. Step 3: Cross multiply
    75,622.95x = 113,425.77 × 20,223.27
  4. Step 4: Simplify right side
    75,622.95x = 2,293,839,971.67
  5. Step 5: Solve for x
    x = 2,293,839,971.67/75,622.95
  6. Step 6: Final answer
    x = 30,332.59

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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.