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Finding the Fourth Proportional to 17,739.61, 24,480.02 and 9,781.76

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Solution

The fourth proportional to 17,739.61, 24,480.02 and 9,781.76 is: 13,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.61 : 24,480.02 = 9,781.76 : x
  2. Step 2: Convert to fraction form
    17,739.61/24,480.02 = 9,781.76/x
  3. Step 3: Cross multiply
    17,739.61x = 24,480.02 × 9,781.76
  4. Step 4: Simplify right side
    17,739.61x = 239,457,766.09
  5. Step 5: Solve for x
    x = 239,457,766.09/17,739.61
  6. Step 6: Final answer
    x = 13,498.48

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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.