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Finding the Fourth Proportional to 10,566.99, 15,858.18 and 3,993.17

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Solution

The fourth proportional to 10,566.99, 15,858.18 and 3,993.17 is: 5,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,566.99 : 15,858.18 = 3,993.17 : x
  2. Step 2: Convert to fraction form
    10,566.99/15,858.18 = 3,993.17/x
  3. Step 3: Cross multiply
    10,566.99x = 15,858.18 × 3,993.17
  4. Step 4: Simplify right side
    10,566.99x = 63,324,329.34
  5. Step 5: Solve for x
    x = 63,324,329.34/10,566.99
  6. Step 6: Final answer
    x = 5,992.66

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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.