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Finding the Fourth Proportional to 70,243.13, 96,936.04 and 39,616.63

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Solution

The fourth proportional to 70,243.13, 96,936.04 and 39,616.63 is: 54,671.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,243.13 : 96,936.04 = 39,616.63 : x
  2. Step 2: Convert to fraction form
    70,243.13/96,936.04 = 39,616.63/x
  3. Step 3: Cross multiply
    70,243.13x = 96,936.04 × 39,616.63
  4. Step 4: Simplify right side
    70,243.13x = 3,840,279,230.35
  5. Step 5: Solve for x
    x = 3,840,279,230.35/70,243.13
  6. Step 6: Final answer
    x = 54,671.24

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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.