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Finding the Fourth Proportional to 21,375.54, 32,063.76 and 7,335.51

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Solution

The fourth proportional to 21,375.54, 32,063.76 and 7,335.51 is: 11,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.54 : 32,063.76 = 7,335.51 : x
  2. Step 2: Convert to fraction form
    21,375.54/32,063.76 = 7,335.51/x
  3. Step 3: Cross multiply
    21,375.54x = 32,063.76 × 7,335.51
  4. Step 4: Simplify right side
    21,375.54x = 235,204,032.12
  5. Step 5: Solve for x
    x = 235,204,032.12/21,375.54
  6. Step 6: Final answer
    x = 11,003.42

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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.