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Finding the Fourth Proportional to 65,695.07, 90,659.18 and 35,480.41

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Solution

The fourth proportional to 65,695.07, 90,659.18 and 35,480.41 is: 48,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,695.07 : 90,659.18 = 35,480.41 : x
  2. Step 2: Convert to fraction form
    65,695.07/90,659.18 = 35,480.41/x
  3. Step 3: Cross multiply
    65,695.07x = 90,659.18 × 35,480.41
  4. Step 4: Simplify right side
    65,695.07x = 3,216,624,738.72
  5. Step 5: Solve for x
    x = 3,216,624,738.72/65,695.07
  6. Step 6: Final answer
    x = 48,962.95

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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.