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Finding the Fourth Proportional to 73,220.13, 109,832.01 and 20,627.64

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Solution

The fourth proportional to 73,220.13, 109,832.01 and 20,627.64 is: 30,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,220.13 : 109,832.01 = 20,627.64 : x
  2. Step 2: Convert to fraction form
    73,220.13/109,832.01 = 20,627.64/x
  3. Step 3: Cross multiply
    73,220.13x = 109,832.01 × 20,627.64
  4. Step 4: Simplify right side
    73,220.13x = 2,265,575,162.76
  5. Step 5: Solve for x
    x = 2,265,575,162.76/73,220.13
  6. Step 6: Final answer
    x = 30,941.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.