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Finding the Fourth Proportional to 65,799.19, 90,803.63 and 35,585.11

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Solution

The fourth proportional to 65,799.19, 90,803.63 and 35,585.11 is: 49,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,799.19 : 90,803.63 = 35,585.11 : x
  2. Step 2: Convert to fraction form
    65,799.19/90,803.63 = 35,585.11/x
  3. Step 3: Cross multiply
    65,799.19x = 90,803.63 × 35,585.11
  4. Step 4: Simplify right side
    65,799.19x = 3,231,257,161.95
  5. Step 5: Solve for x
    x = 3,231,257,161.95/65,799.19
  6. Step 6: Final answer
    x = 49,107.86

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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.