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Finding the Fourth Proportional to 21,852.84, 32,788.44 and 9,375.60

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Solution

The fourth proportional to 21,852.84, 32,788.44 and 9,375.60 is: 14,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.84 : 32,788.44 = 9,375.60 : x
  2. Step 2: Convert to fraction form
    21,852.84/32,788.44 = 9,375.60/x
  3. Step 3: Cross multiply
    21,852.84x = 32,788.44 × 9,375.60
  4. Step 4: Simplify right side
    21,852.84x = 307,411,298.06
  5. Step 5: Solve for x
    x = 307,411,298.06/21,852.84
  6. Step 6: Final answer
    x = 14,067.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.