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Finding the Fourth Proportional to 21,996.60, 32,994.90 and 16,164.60

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Solution

The fourth proportional to 21,996.60, 32,994.90 and 16,164.60 is: 24,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.60 : 32,994.90 = 16,164.60 : x
  2. Step 2: Convert to fraction form
    21,996.60/32,994.90 = 16,164.60/x
  3. Step 3: Cross multiply
    21,996.60x = 32,994.90 × 16,164.60
  4. Step 4: Simplify right side
    21,996.60x = 533,349,360.54
  5. Step 5: Solve for x
    x = 533,349,360.54/21,996.60
  6. Step 6: Final answer
    x = 24,246.90

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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.