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Finding the Fourth Proportional to 35,899.46, 53,860.18 and 18,381.68

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Solution

The fourth proportional to 35,899.46, 53,860.18 and 18,381.68 is: 27,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,899.46 : 53,860.18 = 18,381.68 : x
  2. Step 2: Convert to fraction form
    35,899.46/53,860.18 = 18,381.68/x
  3. Step 3: Cross multiply
    35,899.46x = 53,860.18 × 18,381.68
  4. Step 4: Simplify right side
    35,899.46x = 990,040,593.50
  5. Step 5: Solve for x
    x = 990,040,593.50/35,899.46
  6. Step 6: Final answer
    x = 27,578.15

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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.