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Finding the Fourth Proportional to 36,868.40, 50,870.75 and 21,551.97

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Solution

The fourth proportional to 36,868.40, 50,870.75 and 21,551.97 is: 29,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,868.40 : 50,870.75 = 21,551.97 : x
  2. Step 2: Convert to fraction form
    36,868.40/50,870.75 = 21,551.97/x
  3. Step 3: Cross multiply
    36,868.40x = 50,870.75 × 21,551.97
  4. Step 4: Simplify right side
    36,868.40x = 1,096,365,019.99
  5. Step 5: Solve for x
    x = 1,096,365,019.99/36,868.40
  6. Step 6: Final answer
    x = 29,737.26

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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.