Home / 66,308.36-99,468.42-18,922.55

Finding the Fourth Proportional to 66,308.36, 99,468.42 and 18,922.55

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Solution

The fourth proportional to 66,308.36, 99,468.42 and 18,922.55 is: 28,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.36 : 99,468.42 = 18,922.55 : x
  2. Step 2: Convert to fraction form
    66,308.36/99,468.42 = 18,922.55/x
  3. Step 3: Cross multiply
    66,308.36x = 99,468.42 × 18,922.55
  4. Step 4: Simplify right side
    66,308.36x = 1,882,195,653.53
  5. Step 5: Solve for x
    x = 1,882,195,653.53/66,308.36
  6. Step 6: Final answer
    x = 28,385.50

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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.