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Finding the Fourth Proportional to 21,435.32, 32,100.82 and 14,843

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Solution

The fourth proportional to 21,435.32, 32,100.82 and 14,843 is: 22,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.32 : 32,100.82 = 14,843 : x
  2. Step 2: Convert to fraction form
    21,435.32/32,100.82 = 14,843/x
  3. Step 3: Cross multiply
    21,435.32x = 32,100.82 × 14,843
  4. Step 4: Simplify right side
    21,435.32x = 476,472,471.26
  5. Step 5: Solve for x
    x = 476,472,471.26/21,435.32
  6. Step 6: Final answer
    x = 22,228.38

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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.