Home / 66,361.88-99,508.97-21,972.62

Finding the Fourth Proportional to 66,361.88, 99,508.97 and 21,972.62

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Solution

The fourth proportional to 66,361.88, 99,508.97 and 21,972.62 is: 32,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,361.88 : 99,508.97 = 21,972.62 : x
  2. Step 2: Convert to fraction form
    66,361.88/99,508.97 = 21,972.62/x
  3. Step 3: Cross multiply
    66,361.88x = 99,508.97 × 21,972.62
  4. Step 4: Simplify right side
    66,361.88x = 2,186,472,528.37
  5. Step 5: Solve for x
    x = 2,186,472,528.37/66,361.88
  6. Step 6: Final answer
    x = 32,947.72

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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.