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Finding the Fourth Proportional to 65,806.07, 90,812.09 and 35,591.42

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Solution

The fourth proportional to 65,806.07, 90,812.09 and 35,591.42 is: 49,116.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,806.07 : 90,812.09 = 35,591.42 : x
  2. Step 2: Convert to fraction form
    65,806.07/90,812.09 = 35,591.42/x
  3. Step 3: Cross multiply
    65,806.07x = 90,812.09 × 35,591.42
  4. Step 4: Simplify right side
    65,806.07x = 3,232,130,604.25
  5. Step 5: Solve for x
    x = 3,232,130,604.25/65,806.07
  6. Step 6: Final answer
    x = 49,116.00

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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.