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Finding the Fourth Proportional to 30,859.52, 42,586.04 and 16,712.33

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Solution

The fourth proportional to 30,859.52, 42,586.04 and 16,712.33 is: 23,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.52 : 42,586.04 = 16,712.33 : x
  2. Step 2: Convert to fraction form
    30,859.52/42,586.04 = 16,712.33/x
  3. Step 3: Cross multiply
    30,859.52x = 42,586.04 × 16,712.33
  4. Step 4: Simplify right side
    30,859.52x = 711,711,782.72
  5. Step 5: Solve for x
    x = 711,711,782.72/30,859.52
  6. Step 6: Final answer
    x = 23,062.96

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