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Finding the Fourth Proportional to 17,866.86, 24,655.42 and 9,908.90

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Solution

The fourth proportional to 17,866.86, 24,655.42 and 9,908.90 is: 13,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.86 : 24,655.42 = 9,908.90 : x
  2. Step 2: Convert to fraction form
    17,866.86/24,655.42 = 9,908.90/x
  3. Step 3: Cross multiply
    17,866.86x = 24,655.42 × 9,908.90
  4. Step 4: Simplify right side
    17,866.86x = 244,308,091.24
  5. Step 5: Solve for x
    x = 244,308,091.24/17,866.86
  6. Step 6: Final answer
    x = 13,673.81

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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.