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Finding the Fourth Proportional to 65,957.10, 91,062.08 and 50,821.04

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Solution

The fourth proportional to 65,957.10, 91,062.08 and 50,821.04 is: 70,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,957.10 : 91,062.08 = 50,821.04 : x
  2. Step 2: Convert to fraction form
    65,957.10/91,062.08 = 50,821.04/x
  3. Step 3: Cross multiply
    65,957.10x = 91,062.08 × 50,821.04
  4. Step 4: Simplify right side
    65,957.10x = 4,627,868,900.75
  5. Step 5: Solve for x
    x = 4,627,868,900.75/65,957.10
  6. Step 6: Final answer
    x = 70,164.83

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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.