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Finding the Fourth Proportional to 12,821.99, 19,233.00 and 3,462.00

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Solution

The fourth proportional to 12,821.99, 19,233.00 and 3,462.00 is: 5,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.99 : 19,233.00 = 3,462.00 : x
  2. Step 2: Convert to fraction form
    12,821.99/19,233.00 = 3,462.00/x
  3. Step 3: Cross multiply
    12,821.99x = 19,233.00 × 3,462.00
  4. Step 4: Simplify right side
    12,821.99x = 66,584,685.43
  5. Step 5: Solve for x
    x = 66,584,685.43/12,821.99
  6. Step 6: Final answer
    x = 5,193.01

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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.