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Finding the Fourth Proportional to 29,420.86, 44,128.76 and 8,362.08

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Solution

The fourth proportional to 29,420.86, 44,128.76 and 8,362.08 is: 12,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.86 : 44,128.76 = 8,362.08 : x
  2. Step 2: Convert to fraction form
    29,420.86/44,128.76 = 8,362.08/x
  3. Step 3: Cross multiply
    29,420.86x = 44,128.76 × 8,362.08
  4. Step 4: Simplify right side
    29,420.86x = 369,008,221.42
  5. Step 5: Solve for x
    x = 369,008,221.42/29,420.86
  6. Step 6: Final answer
    x = 12,542.40

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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.