Home / 66,240.05-99,350.35-21,868.25

Finding the Fourth Proportional to 66,240.05, 99,350.35 and 21,868.25

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Solution

The fourth proportional to 66,240.05, 99,350.35 and 21,868.25 is: 32,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,240.05 : 99,350.35 = 21,868.25 : x
  2. Step 2: Convert to fraction form
    66,240.05/99,350.35 = 21,868.25/x
  3. Step 3: Cross multiply
    66,240.05x = 99,350.35 × 21,868.25
  4. Step 4: Simplify right side
    66,240.05x = 2,172,617,739.97
  5. Step 5: Solve for x
    x = 2,172,617,739.97/66,240.05
  6. Step 6: Final answer
    x = 32,799.16

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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.