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Finding the Fourth Proportional to 22,130.01, 30,750.84 and 21,850.56

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Solution

The fourth proportional to 22,130.01, 30,750.84 and 21,850.56 is: 30,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.01 : 30,750.84 = 21,850.56 : x
  2. Step 2: Convert to fraction form
    22,130.01/30,750.84 = 21,850.56/x
  3. Step 3: Cross multiply
    22,130.01x = 30,750.84 × 21,850.56
  4. Step 4: Simplify right side
    22,130.01x = 671,923,074.47
  5. Step 5: Solve for x
    x = 671,923,074.47/22,130.01
  6. Step 6: Final answer
    x = 30,362.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.