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Finding the Fourth Proportional to 22,157.10, 33,210.54 and 8,992.98

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Solution

The fourth proportional to 22,157.10, 33,210.54 and 8,992.98 is: 13,479.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.10 : 33,210.54 = 8,992.98 : x
  2. Step 2: Convert to fraction form
    22,157.10/33,210.54 = 8,992.98/x
  3. Step 3: Cross multiply
    22,157.10x = 33,210.54 × 8,992.98
  4. Step 4: Simplify right side
    22,157.10x = 298,661,722.01
  5. Step 5: Solve for x
    x = 298,661,722.01/22,157.10
  6. Step 6: Final answer
    x = 13,479.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.