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Finding the Fourth Proportional to 22,052.68, 30,432.16 and 11,980.89

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Solution

The fourth proportional to 22,052.68, 30,432.16 and 11,980.89 is: 16,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,052.68 : 30,432.16 = 11,980.89 : x
  2. Step 2: Convert to fraction form
    22,052.68/30,432.16 = 11,980.89/x
  3. Step 3: Cross multiply
    22,052.68x = 30,432.16 × 11,980.89
  4. Step 4: Simplify right side
    22,052.68x = 364,604,361.42
  5. Step 5: Solve for x
    x = 364,604,361.42/22,052.68
  6. Step 6: Final answer
    x = 16,533.34

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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.