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Finding the Fourth Proportional to 17,866.62, 24,653.82 and 9,906.90

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Solution

The fourth proportional to 17,866.62, 24,653.82 and 9,906.90 is: 13,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.62 : 24,653.82 = 9,906.90 : x
  2. Step 2: Convert to fraction form
    17,866.62/24,653.82 = 9,906.90/x
  3. Step 3: Cross multiply
    17,866.62x = 24,653.82 × 9,906.90
  4. Step 4: Simplify right side
    17,866.62x = 244,242,929.36
  5. Step 5: Solve for x
    x = 244,242,929.36/17,866.62
  6. Step 6: Final answer
    x = 13,670.35

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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.