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Finding the Fourth Proportional to 16,662.90, 22,994.74 and 9,109.23

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Solution

The fourth proportional to 16,662.90, 22,994.74 and 9,109.23 is: 12,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,662.90 : 22,994.74 = 9,109.23 : x
  2. Step 2: Convert to fraction form
    16,662.90/22,994.74 = 9,109.23/x
  3. Step 3: Cross multiply
    16,662.90x = 22,994.74 × 9,109.23
  4. Step 4: Simplify right side
    16,662.90x = 209,464,249.37
  5. Step 5: Solve for x
    x = 209,464,249.37/16,662.90
  6. Step 6: Final answer
    x = 12,570.70

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Half scale
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Double scale
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Similar ratio
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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.