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Finding the Fourth Proportional to 52,827.62, 79,243.86 and 21,641

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Solution

The fourth proportional to 52,827.62, 79,243.86 and 21,641 is: 32,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,827.62 : 79,243.86 = 21,641 : x
  2. Step 2: Convert to fraction form
    52,827.62/79,243.86 = 21,641/x
  3. Step 3: Cross multiply
    52,827.62x = 79,243.86 × 21,641
  4. Step 4: Simplify right side
    52,827.62x = 1,714,916,374.26
  5. Step 5: Solve for x
    x = 1,714,916,374.26/52,827.62
  6. Step 6: Final answer
    x = 32,462.50

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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.