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Finding the Fourth Proportional to 16,643.68, 22,969.98 and 16,127.44

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Solution

The fourth proportional to 16,643.68, 22,969.98 and 16,127.44 is: 22,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.68 : 22,969.98 = 16,127.44 : x
  2. Step 2: Convert to fraction form
    16,643.68/22,969.98 = 16,127.44/x
  3. Step 3: Cross multiply
    16,643.68x = 22,969.98 × 16,127.44
  4. Step 4: Simplify right side
    16,643.68x = 370,446,974.25
  5. Step 5: Solve for x
    x = 370,446,974.25/16,643.68
  6. Step 6: Final answer
    x = 22,257.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.