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Finding the Fourth Proportional to 29,041.85, 43,568.44 and 9,318.89

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Solution

The fourth proportional to 29,041.85, 43,568.44 and 9,318.89 is: 13,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,041.85 : 43,568.44 = 9,318.89 : x
  2. Step 2: Convert to fraction form
    29,041.85/43,568.44 = 9,318.89/x
  3. Step 3: Cross multiply
    29,041.85x = 43,568.44 × 9,318.89
  4. Step 4: Simplify right side
    29,041.85x = 406,009,499.83
  5. Step 5: Solve for x
    x = 406,009,499.83/29,041.85
  6. Step 6: Final answer
    x = 13,980.15

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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.