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Finding the Fourth Proportional to 42,705.40, 63,960.90 and 41,733.40

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Solution

The fourth proportional to 42,705.40, 63,960.90 and 41,733.40 is: 62,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705.40 : 63,960.90 = 41,733.40 : x
  2. Step 2: Convert to fraction form
    42,705.40/63,960.90 = 41,733.40/x
  3. Step 3: Cross multiply
    42,705.40x = 63,960.90 × 41,733.40
  4. Step 4: Simplify right side
    42,705.40x = 2,669,305,824.06
  5. Step 5: Solve for x
    x = 2,669,305,824.06/42,705.40
  6. Step 6: Final answer
    x = 62,505.11

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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.