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Finding the Fourth Proportional to 29,405.15, 44,108.58 and 7,218.52

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Solution

The fourth proportional to 29,405.15, 44,108.58 and 7,218.52 is: 10,827.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.15 : 44,108.58 = 7,218.52 : x
  2. Step 2: Convert to fraction form
    29,405.15/44,108.58 = 7,218.52/x
  3. Step 3: Cross multiply
    29,405.15x = 44,108.58 × 7,218.52
  4. Step 4: Simplify right side
    29,405.15x = 318,398,749.11
  5. Step 5: Solve for x
    x = 318,398,749.11/29,405.15
  6. Step 6: Final answer
    x = 10,827.99

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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.