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Finding the Fourth Proportional to 66,805.67, 100,217.73 and 22,445.10

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Solution

The fourth proportional to 66,805.67, 100,217.73 and 22,445.10 is: 33,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.67 : 100,217.73 = 22,445.10 : x
  2. Step 2: Convert to fraction form
    66,805.67/100,217.73 = 22,445.10/x
  3. Step 3: Cross multiply
    66,805.67x = 100,217.73 × 22,445.10
  4. Step 4: Simplify right side
    66,805.67x = 2,249,396,971.62
  5. Step 5: Solve for x
    x = 2,249,396,971.62/66,805.67
  6. Step 6: Final answer
    x = 33,670.75

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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.