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Finding the Fourth Proportional to 11,293.80, 16,951.10 and 5,751.13

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Solution

The fourth proportional to 11,293.80, 16,951.10 and 5,751.13 is: 8,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.80 : 16,951.10 = 5,751.13 : x
  2. Step 2: Convert to fraction form
    11,293.80/16,951.10 = 5,751.13/x
  3. Step 3: Cross multiply
    11,293.80x = 16,951.10 × 5,751.13
  4. Step 4: Simplify right side
    11,293.80x = 97,487,979.74
  5. Step 5: Solve for x
    x = 97,487,979.74/11,293.80
  6. Step 6: Final answer
    x = 8,631.99

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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.