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Finding the Fourth Proportional to 43,225.75, 64,813.72 and 16,916.14

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Solution

The fourth proportional to 43,225.75, 64,813.72 and 16,916.14 is: 25,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,225.75 : 64,813.72 = 16,916.14 : x
  2. Step 2: Convert to fraction form
    43,225.75/64,813.72 = 16,916.14/x
  3. Step 3: Cross multiply
    43,225.75x = 64,813.72 × 16,916.14
  4. Step 4: Simplify right side
    43,225.75x = 1,096,397,961.44
  5. Step 5: Solve for x
    x = 1,096,397,961.44/43,225.75
  6. Step 6: Final answer
    x = 25,364.46

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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.