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Finding the Fourth Proportional to 43,885.65, 65,835.30 and 14,296.61

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Solution

The fourth proportional to 43,885.65, 65,835.30 and 14,296.61 is: 21,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,885.65 : 65,835.30 = 14,296.61 : x
  2. Step 2: Convert to fraction form
    43,885.65/65,835.30 = 14,296.61/x
  3. Step 3: Cross multiply
    43,885.65x = 65,835.30 × 14,296.61
  4. Step 4: Simplify right side
    43,885.65x = 941,221,279.16
  5. Step 5: Solve for x
    x = 941,221,279.16/43,885.65
  6. Step 6: Final answer
    x = 21,447.13

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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.