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Finding the Fourth Proportional to 17,707.80, 24,361.02 and 17,215.86

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Solution

The fourth proportional to 17,707.80, 24,361.02 and 17,215.86 is: 23,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,707.80 : 24,361.02 = 17,215.86 : x
  2. Step 2: Convert to fraction form
    17,707.80/24,361.02 = 17,215.86/x
  3. Step 3: Cross multiply
    17,707.80x = 24,361.02 × 17,215.86
  4. Step 4: Simplify right side
    17,707.80x = 419,395,909.78
  5. Step 5: Solve for x
    x = 419,395,909.78/17,707.80
  6. Step 6: Final answer
    x = 23,684.25

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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.