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Finding the Fourth Proportional to 66,778.53, 100,218.57 and 24,698.42

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Solution

The fourth proportional to 66,778.53, 100,218.57 and 24,698.42 is: 37,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,778.53 : 100,218.57 = 24,698.42 : x
  2. Step 2: Convert to fraction form
    66,778.53/100,218.57 = 24,698.42/x
  3. Step 3: Cross multiply
    66,778.53x = 100,218.57 × 24,698.42
  4. Step 4: Simplify right side
    66,778.53x = 2,475,240,115.77
  5. Step 5: Solve for x
    x = 2,475,240,115.77/66,778.53
  6. Step 6: Final answer
    x = 37,066.41

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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.