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Finding the Fourth Proportional to 65,806.68, 90,812.95 and 35,592.04

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Solution

The fourth proportional to 65,806.68, 90,812.95 and 35,592.04 is: 49,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,806.68 : 90,812.95 = 35,592.04 : x
  2. Step 2: Convert to fraction form
    65,806.68/90,812.95 = 35,592.04/x
  3. Step 3: Cross multiply
    65,806.68x = 90,812.95 × 35,592.04
  4. Step 4: Simplify right side
    65,806.68x = 3,232,218,148.92
  5. Step 5: Solve for x
    x = 3,232,218,148.92/65,806.68
  6. Step 6: Final answer
    x = 49,116.87

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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.