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Finding the Fourth Proportional to 58,666.64, 88,017.24 and 21,722

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Solution

The fourth proportional to 58,666.64, 88,017.24 and 21,722 is: 32,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,666.64 : 88,017.24 = 21,722 : x
  2. Step 2: Convert to fraction form
    58,666.64/88,017.24 = 21,722/x
  3. Step 3: Cross multiply
    58,666.64x = 88,017.24 × 21,722
  4. Step 4: Simplify right side
    58,666.64x = 1,911,910,487.28
  5. Step 5: Solve for x
    x = 1,911,910,487.28/58,666.64
  6. Step 6: Final answer
    x = 32,589.40

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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.