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Finding the Fourth Proportional to 12,468.83, 18,703.04 and 3,703.82

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Solution

The fourth proportional to 12,468.83, 18,703.04 and 3,703.82 is: 5,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.83 : 18,703.04 = 3,703.82 : x
  2. Step 2: Convert to fraction form
    12,468.83/18,703.04 = 3,703.82/x
  3. Step 3: Cross multiply
    12,468.83x = 18,703.04 × 3,703.82
  4. Step 4: Simplify right side
    12,468.83x = 69,272,581.58
  5. Step 5: Solve for x
    x = 69,272,581.58/12,468.83
  6. Step 6: Final answer
    x = 5,555.66

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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.