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Finding the Fourth Proportional to 21,375.34, 32,063.48 and 7,335.32

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Solution

The fourth proportional to 21,375.34, 32,063.48 and 7,335.32 is: 11,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.34 : 32,063.48 = 7,335.32 : x
  2. Step 2: Convert to fraction form
    21,375.34/32,063.48 = 7,335.32/x
  3. Step 3: Cross multiply
    21,375.34x = 32,063.48 × 7,335.32
  4. Step 4: Simplify right side
    21,375.34x = 235,195,886.11
  5. Step 5: Solve for x
    x = 235,195,886.11/21,375.34
  6. Step 6: Final answer
    x = 11,003.14

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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.