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Finding the Fourth Proportional to 18,374.48, 27,562.62 and 5,227.77

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Solution

The fourth proportional to 18,374.48, 27,562.62 and 5,227.77 is: 7,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.48 : 27,562.62 = 5,227.77 : x
  2. Step 2: Convert to fraction form
    18,374.48/27,562.62 = 5,227.77/x
  3. Step 3: Cross multiply
    18,374.48x = 27,562.62 × 5,227.77
  4. Step 4: Simplify right side
    18,374.48x = 144,091,037.96
  5. Step 5: Solve for x
    x = 144,091,037.96/18,374.48
  6. Step 6: Final answer
    x = 7,841.91

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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.