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Finding the Fourth Proportional to 71,669.64, 98,914.90 and 51,593

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Solution

The fourth proportional to 71,669.64, 98,914.90 and 51,593 is: 71,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,669.64 : 98,914.90 = 51,593 : x
  2. Step 2: Convert to fraction form
    71,669.64/98,914.90 = 51,593/x
  3. Step 3: Cross multiply
    71,669.64x = 98,914.90 × 51,593
  4. Step 4: Simplify right side
    71,669.64x = 5,103,316,435.70
  5. Step 5: Solve for x
    x = 5,103,316,435.70/71,669.64
  6. Step 6: Final answer
    x = 71,206.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.