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Finding the Fourth Proportional to 18,235.61, 27,353.41 and 4,384.61

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Solution

The fourth proportional to 18,235.61, 27,353.41 and 4,384.61 is: 6,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.61 : 27,353.41 = 4,384.61 : x
  2. Step 2: Convert to fraction form
    18,235.61/27,353.41 = 4,384.61/x
  3. Step 3: Cross multiply
    18,235.61x = 27,353.41 × 4,384.61
  4. Step 4: Simplify right side
    18,235.61x = 119,933,887.29
  5. Step 5: Solve for x
    x = 119,933,887.29/18,235.61
  6. Step 6: Final answer
    x = 6,576.91

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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.