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Finding the Fourth Proportional to 66,513.34, 91,787.61 and 36,299.17

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Solution

The fourth proportional to 66,513.34, 91,787.61 and 36,299.17 is: 50,092.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.34 : 91,787.61 = 36,299.17 : x
  2. Step 2: Convert to fraction form
    66,513.34/91,787.61 = 36,299.17/x
  3. Step 3: Cross multiply
    66,513.34x = 91,787.61 × 36,299.17
  4. Step 4: Simplify right side
    66,513.34x = 3,331,813,600.35
  5. Step 5: Solve for x
    x = 3,331,813,600.35/66,513.34
  6. Step 6: Final answer
    x = 50,092.42

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1.5x scale

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.