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Finding the Fourth Proportional to 64,469.82, 88,966.94 and 35,787.80

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Solution

The fourth proportional to 64,469.82, 88,966.94 and 35,787.80 is: 49,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,469.82 : 88,966.94 = 35,787.80 : x
  2. Step 2: Convert to fraction form
    64,469.82/88,966.94 = 35,787.80/x
  3. Step 3: Cross multiply
    64,469.82x = 88,966.94 × 35,787.80
  4. Step 4: Simplify right side
    64,469.82x = 3,183,931,300.12
  5. Step 5: Solve for x
    x = 3,183,931,300.12/64,469.82
  6. Step 6: Final answer
    x = 49,386.39

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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.