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Finding the Fourth Proportional to 65,696.70, 90,661.43 and 35,482.02

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Solution

The fourth proportional to 65,696.70, 90,661.43 and 35,482.02 is: 48,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,696.70 : 90,661.43 = 35,482.02 : x
  2. Step 2: Convert to fraction form
    65,696.70/90,661.43 = 35,482.02/x
  3. Step 3: Cross multiply
    65,696.70x = 90,661.43 × 35,482.02
  4. Step 4: Simplify right side
    65,696.70x = 3,216,850,221.63
  5. Step 5: Solve for x
    x = 3,216,850,221.63/65,696.70
  6. Step 6: Final answer
    x = 48,965.17

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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.