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Finding the Fourth Proportional to 12,473.79, 18,712.52 and 4,467.95

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Solution

The fourth proportional to 12,473.79, 18,712.52 and 4,467.95 is: 6,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.79 : 18,712.52 = 4,467.95 : x
  2. Step 2: Convert to fraction form
    12,473.79/18,712.52 = 4,467.95/x
  3. Step 3: Cross multiply
    12,473.79x = 18,712.52 × 4,467.95
  4. Step 4: Simplify right side
    12,473.79x = 83,606,581.39
  5. Step 5: Solve for x
    x = 83,606,581.39/12,473.79
  6. Step 6: Final answer
    x = 6,702.58

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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.