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Finding the Fourth Proportional to 73,160.79, 100,962.38 and 39,626.79

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Solution

The fourth proportional to 73,160.79, 100,962.38 and 39,626.79 is: 54,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,160.79 : 100,962.38 = 39,626.79 : x
  2. Step 2: Convert to fraction form
    73,160.79/100,962.38 = 39,626.79/x
  3. Step 3: Cross multiply
    73,160.79x = 100,962.38 × 39,626.79
  4. Step 4: Simplify right side
    73,160.79x = 4,000,814,832.03
  5. Step 5: Solve for x
    x = 4,000,814,832.03/73,160.79
  6. Step 6: Final answer
    x = 54,685.23

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1.5x scale

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.