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Finding the Fourth Proportional to 70,218.90, 96,921.09 and 41,937.30

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Solution

The fourth proportional to 70,218.90, 96,921.09 and 41,937.30 is: 57,884.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,218.90 : 96,921.09 = 41,937.30 : x
  2. Step 2: Convert to fraction form
    70,218.90/96,921.09 = 41,937.30/x
  3. Step 3: Cross multiply
    70,218.90x = 96,921.09 × 41,937.30
  4. Step 4: Simplify right side
    70,218.90x = 4,064,608,827.66
  5. Step 5: Solve for x
    x = 4,064,608,827.66/70,218.90
  6. Step 6: Final answer
    x = 57,884.83

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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.