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Finding the Fourth Proportional to 22,608.72, 33,943.80 and 12,765.60

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Solution

The fourth proportional to 22,608.72, 33,943.80 and 12,765.60 is: 19,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,608.72 : 33,943.80 = 12,765.60 : x
  2. Step 2: Convert to fraction form
    22,608.72/33,943.80 = 12,765.60/x
  3. Step 3: Cross multiply
    22,608.72x = 33,943.80 × 12,765.60
  4. Step 4: Simplify right side
    22,608.72x = 433,312,973.28
  5. Step 5: Solve for x
    x = 433,312,973.28/22,608.72
  6. Step 6: Final answer
    x = 19,165.75

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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.