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Finding the Fourth Proportional to 30,125.82, 41,574.54 and 16,695.82

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Solution

The fourth proportional to 30,125.82, 41,574.54 and 16,695.82 is: 23,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.82 : 41,574.54 = 16,695.82 : x
  2. Step 2: Convert to fraction form
    30,125.82/41,574.54 = 16,695.82/x
  3. Step 3: Cross multiply
    30,125.82x = 41,574.54 × 16,695.82
  4. Step 4: Simplify right side
    30,125.82x = 694,121,036.42
  5. Step 5: Solve for x
    x = 694,121,036.42/30,125.82
  6. Step 6: Final answer
    x = 23,040.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.