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Finding the Fourth Proportional to 17,957.77, 24,785.94 and 11,659.21

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Solution

The fourth proportional to 17,957.77, 24,785.94 and 11,659.21 is: 16,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.77 : 24,785.94 = 11,659.21 : x
  2. Step 2: Convert to fraction form
    17,957.77/24,785.94 = 11,659.21/x
  3. Step 3: Cross multiply
    17,957.77x = 24,785.94 × 11,659.21
  4. Step 4: Simplify right side
    17,957.77x = 288,984,479.51
  5. Step 5: Solve for x
    x = 288,984,479.51/17,957.77
  6. Step 6: Final answer
    x = 16,092.45

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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.