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Finding the Fourth Proportional to 73,373.10, 101,255.34 and 39,839.10

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Solution

The fourth proportional to 73,373.10, 101,255.34 and 39,839.10 is: 54,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,373.10 : 101,255.34 = 39,839.10 : x
  2. Step 2: Convert to fraction form
    73,373.10/101,255.34 = 39,839.10/x
  3. Step 3: Cross multiply
    73,373.10x = 101,255.34 × 39,839.10
  4. Step 4: Simplify right side
    73,373.10x = 4,033,921,615.79
  5. Step 5: Solve for x
    x = 4,033,921,615.79/73,373.10
  6. Step 6: Final answer
    x = 54,978.21

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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.