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Finding the Fourth Proportional to 22,405.26, 33,587.12 and 9,918.63

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Solution

The fourth proportional to 22,405.26, 33,587.12 and 9,918.63 is: 14,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.26 : 33,587.12 = 9,918.63 : x
  2. Step 2: Convert to fraction form
    22,405.26/33,587.12 = 9,918.63/x
  3. Step 3: Cross multiply
    22,405.26x = 33,587.12 × 9,918.63
  4. Step 4: Simplify right side
    22,405.26x = 333,138,216.05
  5. Step 5: Solve for x
    x = 333,138,216.05/22,405.26
  6. Step 6: Final answer
    x = 14,868.75

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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.