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Finding the Fourth Proportional to 86,522.68, 129,728.22 and 33,937.48

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Solution

The fourth proportional to 86,522.68, 129,728.22 and 33,937.48 is: 50,884.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,522.68 : 129,728.22 = 33,937.48 : x
  2. Step 2: Convert to fraction form
    86,522.68/129,728.22 = 33,937.48/x
  3. Step 3: Cross multiply
    86,522.68x = 129,728.22 × 33,937.48
  4. Step 4: Simplify right side
    86,522.68x = 4,402,648,871.69
  5. Step 5: Solve for x
    x = 4,402,648,871.69/86,522.68
  6. Step 6: Final answer
    x = 50,884.33

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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.