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Finding the Fourth Proportional to 16,115.60, 24,124.80 and 14,171.60

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Solution

The fourth proportional to 16,115.60, 24,124.80 and 14,171.60 is: 21,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.60 : 24,124.80 = 14,171.60 : x
  2. Step 2: Convert to fraction form
    16,115.60/24,124.80 = 14,171.60/x
  3. Step 3: Cross multiply
    16,115.60x = 24,124.80 × 14,171.60
  4. Step 4: Simplify right side
    16,115.60x = 341,887,015.68
  5. Step 5: Solve for x
    x = 341,887,015.68/16,115.60
  6. Step 6: Final answer
    x = 21,214.66

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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.