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Finding the Fourth Proportional to 21,497.40, 32,246.10 and 14,110.20

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Solution

The fourth proportional to 21,497.40, 32,246.10 and 14,110.20 is: 21,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.40 : 32,246.10 = 14,110.20 : x
  2. Step 2: Convert to fraction form
    21,497.40/32,246.10 = 14,110.20/x
  3. Step 3: Cross multiply
    21,497.40x = 32,246.10 × 14,110.20
  4. Step 4: Simplify right side
    21,497.40x = 454,998,920.22
  5. Step 5: Solve for x
    x = 454,998,920.22/21,497.40
  6. Step 6: Final answer
    x = 21,165.30

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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.