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Finding the Fourth Proportional to 17,900.64, 24,702.84 and 9,942.84

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Solution

The fourth proportional to 17,900.64, 24,702.84 and 9,942.84 is: 13,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.64 : 24,702.84 = 9,942.84 : x
  2. Step 2: Convert to fraction form
    17,900.64/24,702.84 = 9,942.84/x
  3. Step 3: Cross multiply
    17,900.64x = 24,702.84 × 9,942.84
  4. Step 4: Simplify right side
    17,900.64x = 245,616,385.67
  5. Step 5: Solve for x
    x = 245,616,385.67/17,900.64
  6. Step 6: Final answer
    x = 13,721.10

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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.