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Finding the Fourth Proportional to 37,326.91, 55,978.30 and 12,362.35

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Solution

The fourth proportional to 37,326.91, 55,978.30 and 12,362.35 is: 18,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,326.91 : 55,978.30 = 12,362.35 : x
  2. Step 2: Convert to fraction form
    37,326.91/55,978.30 = 12,362.35/x
  3. Step 3: Cross multiply
    37,326.91x = 55,978.30 × 12,362.35
  4. Step 4: Simplify right side
    37,326.91x = 692,023,337.01
  5. Step 5: Solve for x
    x = 692,023,337.01/37,326.91
  6. Step 6: Final answer
    x = 18,539.53

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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.