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Finding the Fourth Proportional to 31,767, 47,639.06 and 10,702.52

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Solution

The fourth proportional to 31,767, 47,639.06 and 10,702.52 is: 16,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,767 : 47,639.06 = 10,702.52 : x
  2. Step 2: Convert to fraction form
    31,767/47,639.06 = 10,702.52/x
  3. Step 3: Cross multiply
    31,767x = 47,639.06 × 10,702.52
  4. Step 4: Simplify right side
    31,767x = 509,857,992.43
  5. Step 5: Solve for x
    x = 509,857,992.43/31,767
  6. Step 6: Final answer
    x = 16,049.93

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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.