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Finding the Fourth Proportional to 66,667.35, 100,028.82 and 29,254.32

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Solution

The fourth proportional to 66,667.35, 100,028.82 and 29,254.32 is: 43,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667.35 : 100,028.82 = 29,254.32 : x
  2. Step 2: Convert to fraction form
    66,667.35/100,028.82 = 29,254.32/x
  3. Step 3: Cross multiply
    66,667.35x = 100,028.82 × 29,254.32
  4. Step 4: Simplify right side
    66,667.35x = 2,926,275,109.50
  5. Step 5: Solve for x
    x = 2,926,275,109.50/66,667.35
  6. Step 6: Final answer
    x = 43,893.68

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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.