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Finding the Fourth Proportional to 65,504.49, 90,396.18 and 35,696.49

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Solution

The fourth proportional to 65,504.49, 90,396.18 and 35,696.49 is: 49,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,504.49 : 90,396.18 = 35,696.49 : x
  2. Step 2: Convert to fraction form
    65,504.49/90,396.18 = 35,696.49/x
  3. Step 3: Cross multiply
    65,504.49x = 90,396.18 × 35,696.49
  4. Step 4: Simplify right side
    65,504.49x = 3,226,826,335.41
  5. Step 5: Solve for x
    x = 3,226,826,335.41/65,504.49
  6. Step 6: Final answer
    x = 49,261.15

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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.