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Finding the Fourth Proportional to 29,647.61, 40,914.71 and 16,902.68

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Solution

The fourth proportional to 29,647.61, 40,914.71 and 16,902.68 is: 23,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.61 : 40,914.71 = 16,902.68 : x
  2. Step 2: Convert to fraction form
    29,647.61/40,914.71 = 16,902.68/x
  3. Step 3: Cross multiply
    29,647.61x = 40,914.71 × 16,902.68
  4. Step 4: Simplify right side
    29,647.61x = 691,568,394.97
  5. Step 5: Solve for x
    x = 691,568,394.97/29,647.61
  6. Step 6: Final answer
    x = 23,326.28

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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.