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Finding the Fourth Proportional to 12,511.25, 17,266.07 and 6,922.25

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Solution

The fourth proportional to 12,511.25, 17,266.07 and 6,922.25 is: 9,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.25 : 17,266.07 = 6,922.25 : x
  2. Step 2: Convert to fraction form
    12,511.25/17,266.07 = 6,922.25/x
  3. Step 3: Cross multiply
    12,511.25x = 17,266.07 × 6,922.25
  4. Step 4: Simplify right side
    12,511.25x = 119,520,053.06
  5. Step 5: Solve for x
    x = 119,520,053.06/12,511.25
  6. Step 6: Final answer
    x = 9,553.01

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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.