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Finding the Fourth Proportional to 64,611.18, 96,916.50 and 17,226.18

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Solution

The fourth proportional to 64,611.18, 96,916.50 and 17,226.18 is: 25,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,611.18 : 96,916.50 = 17,226.18 : x
  2. Step 2: Convert to fraction form
    64,611.18/96,916.50 = 17,226.18/x
  3. Step 3: Cross multiply
    64,611.18x = 96,916.50 × 17,226.18
  4. Step 4: Simplify right side
    64,611.18x = 1,669,501,073.97
  5. Step 5: Solve for x
    x = 1,669,501,073.97/64,611.18
  6. Step 6: Final answer
    x = 25,839.20

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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.