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Finding the Fourth Proportional to 67,249, 100,864.42 and 27,800.64

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Solution

The fourth proportional to 67,249, 100,864.42 and 27,800.64 is: 41,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,249 : 100,864.42 = 27,800.64 : x
  2. Step 2: Convert to fraction form
    67,249/100,864.42 = 27,800.64/x
  3. Step 3: Cross multiply
    67,249x = 100,864.42 × 27,800.64
  4. Step 4: Simplify right side
    67,249x = 2,804,095,429.23
  5. Step 5: Solve for x
    x = 2,804,095,429.23/67,249
  6. Step 6: Final answer
    x = 41,697.21

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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.