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Finding the Fourth Proportional to 22,209.76, 30,649.48 and 12,273.76

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Solution

The fourth proportional to 22,209.76, 30,649.48 and 12,273.76 is: 16,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,209.76 : 30,649.48 = 12,273.76 : x
  2. Step 2: Convert to fraction form
    22,209.76/30,649.48 = 12,273.76/x
  3. Step 3: Cross multiply
    22,209.76x = 30,649.48 × 12,273.76
  4. Step 4: Simplify right side
    22,209.76x = 376,184,361.64
  5. Step 5: Solve for x
    x = 376,184,361.64/22,209.76
  6. Step 6: Final answer
    x = 16,937.79

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Half scale
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Double scale
Find fourth proportional to 22,210.76, 30,650.86 and 12,274.76
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.