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Finding the Fourth Proportional to 16,659.74, 22,991.05 and 9,106.58

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Solution

The fourth proportional to 16,659.74, 22,991.05 and 9,106.58 is: 12,567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.74 : 22,991.05 = 9,106.58 : x
  2. Step 2: Convert to fraction form
    16,659.74/22,991.05 = 9,106.58/x
  3. Step 3: Cross multiply
    16,659.74x = 22,991.05 × 9,106.58
  4. Step 4: Simplify right side
    16,659.74x = 209,369,698.39
  5. Step 5: Solve for x
    x = 209,369,698.39/16,659.74
  6. Step 6: Final answer
    x = 12,567.41

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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.