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Finding the Fourth Proportional to 43,555.62, 65,333.19 and 15,853.62

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Solution

The fourth proportional to 43,555.62, 65,333.19 and 15,853.62 is: 23,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,555.62 : 65,333.19 = 15,853.62 : x
  2. Step 2: Convert to fraction form
    43,555.62/65,333.19 = 15,853.62/x
  3. Step 3: Cross multiply
    43,555.62x = 65,333.19 × 15,853.62
  4. Step 4: Simplify right side
    43,555.62x = 1,035,767,567.65
  5. Step 5: Solve for x
    x = 1,035,767,567.65/43,555.62
  6. Step 6: Final answer
    x = 23,780.34

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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.