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Finding the Fourth Proportional to 20,727.60, 31,026.60 and 14,895.60

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Solution

The fourth proportional to 20,727.60, 31,026.60 and 14,895.60 is: 22,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.60 : 31,026.60 = 14,895.60 : x
  2. Step 2: Convert to fraction form
    20,727.60/31,026.60 = 14,895.60/x
  3. Step 3: Cross multiply
    20,727.60x = 31,026.60 × 14,895.60
  4. Step 4: Simplify right side
    20,727.60x = 462,159,822.96
  5. Step 5: Solve for x
    x = 462,159,822.96/20,727.60
  6. Step 6: Final answer
    x = 22,296.83

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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.