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Finding the Fourth Proportional to 29,385.81, 44,069.36 and 9,659.82

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Solution

The fourth proportional to 29,385.81, 44,069.36 and 9,659.82 is: 14,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,385.81 : 44,069.36 = 9,659.82 : x
  2. Step 2: Convert to fraction form
    29,385.81/44,069.36 = 9,659.82/x
  3. Step 3: Cross multiply
    29,385.81x = 44,069.36 × 9,659.82
  4. Step 4: Simplify right side
    29,385.81x = 425,702,036.82
  5. Step 5: Solve for x
    x = 425,702,036.82/29,385.81
  6. Step 6: Final answer
    x = 14,486.65

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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.