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Finding the Fourth Proportional to 30,342.93, 41,874.54 and 16,914.18

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Solution

The fourth proportional to 30,342.93, 41,874.54 and 16,914.18 is: 23,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342.93 : 41,874.54 = 16,914.18 : x
  2. Step 2: Convert to fraction form
    30,342.93/41,874.54 = 16,914.18/x
  3. Step 3: Cross multiply
    30,342.93x = 41,874.54 × 16,914.18
  4. Step 4: Simplify right side
    30,342.93x = 708,273,506.98
  5. Step 5: Solve for x
    x = 708,273,506.98/30,342.93
  6. Step 6: Final answer
    x = 23,342.29

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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.