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Finding the Fourth Proportional to 65,696.76, 90,661.52 and 35,482.09

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Solution

The fourth proportional to 65,696.76, 90,661.52 and 35,482.09 is: 48,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,696.76 : 90,661.52 = 35,482.09 : x
  2. Step 2: Convert to fraction form
    65,696.76/90,661.52 = 35,482.09/x
  3. Step 3: Cross multiply
    65,696.76x = 90,661.52 × 35,482.09
  4. Step 4: Simplify right side
    65,696.76x = 3,216,859,581.46
  5. Step 5: Solve for x
    x = 3,216,859,581.46/65,696.76
  6. Step 6: Final answer
    x = 48,965.27

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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.