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Finding the Fourth Proportional to 66,083.99, 99,132.26 and 21,710.97

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Solution

The fourth proportional to 66,083.99, 99,132.26 and 21,710.97 is: 32,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,083.99 : 99,132.26 = 21,710.97 : x
  2. Step 2: Convert to fraction form
    66,083.99/99,132.26 = 21,710.97/x
  3. Step 3: Cross multiply
    66,083.99x = 99,132.26 × 21,710.97
  4. Step 4: Simplify right side
    66,083.99x = 2,152,257,414.34
  5. Step 5: Solve for x
    x = 2,152,257,414.34/66,083.99
  6. Step 6: Final answer
    x = 32,568.52

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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.