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Finding the Fourth Proportional to 66,233.10, 99,350.74 and 19,487.10

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Solution

The fourth proportional to 66,233.10, 99,350.74 and 19,487.10 is: 29,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,233.10 : 99,350.74 = 19,487.10 : x
  2. Step 2: Convert to fraction form
    66,233.10/99,350.74 = 19,487.10/x
  3. Step 3: Cross multiply
    66,233.10x = 99,350.74 × 19,487.10
  4. Step 4: Simplify right side
    66,233.10x = 1,936,057,805.45
  5. Step 5: Solve for x
    x = 1,936,057,805.45/66,233.10
  6. Step 6: Final answer
    x = 29,230.97

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Similar ratio
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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.