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Finding the Fourth Proportional to 36,963.72, 55,444.14 and 12,339.72

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Solution

The fourth proportional to 36,963.72, 55,444.14 and 12,339.72 is: 18,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,963.72 : 55,444.14 = 12,339.72 : x
  2. Step 2: Convert to fraction form
    36,963.72/55,444.14 = 12,339.72/x
  3. Step 3: Cross multiply
    36,963.72x = 55,444.14 × 12,339.72
  4. Step 4: Simplify right side
    36,963.72x = 684,165,163.24
  5. Step 5: Solve for x
    x = 684,165,163.24/36,963.72
  6. Step 6: Final answer
    x = 18,509.10

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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.