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Finding the Fourth Proportional to 30,659.52, 45,978.20 and 16,605.32

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Solution

The fourth proportional to 30,659.52, 45,978.20 and 16,605.32 is: 24,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.52 : 45,978.20 = 16,605.32 : x
  2. Step 2: Convert to fraction form
    30,659.52/45,978.20 = 16,605.32/x
  3. Step 3: Cross multiply
    30,659.52x = 45,978.20 × 16,605.32
  4. Step 4: Simplify right side
    30,659.52x = 763,482,473.38
  5. Step 5: Solve for x
    x = 763,482,473.38/30,659.52
  6. Step 6: Final answer
    x = 24,901.97

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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.