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Finding the Fourth Proportional to 17,901.15, 24,702.21 and 9,942.09

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Solution

The fourth proportional to 17,901.15, 24,702.21 and 9,942.09 is: 13,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,901.15 : 24,702.21 = 9,942.09 : x
  2. Step 2: Convert to fraction form
    17,901.15/24,702.21 = 9,942.09/x
  3. Step 3: Cross multiply
    17,901.15x = 24,702.21 × 9,942.09
  4. Step 4: Simplify right side
    17,901.15x = 245,591,595.02
  5. Step 5: Solve for x
    x = 245,591,595.02/17,901.15
  6. Step 6: Final answer
    x = 13,719.32

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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.