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Finding the Fourth Proportional to 86,637.62, 129,961.16 and 27,469.01

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Solution

The fourth proportional to 86,637.62, 129,961.16 and 27,469.01 is: 41,205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,637.62 : 129,961.16 = 27,469.01 : x
  2. Step 2: Convert to fraction form
    86,637.62/129,961.16 = 27,469.01/x
  3. Step 3: Cross multiply
    86,637.62x = 129,961.16 × 27,469.01
  4. Step 4: Simplify right side
    86,637.62x = 3,569,903,616.50
  5. Step 5: Solve for x
    x = 3,569,903,616.50/86,637.62
  6. Step 6: Final answer
    x = 41,205.01

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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.