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Finding the Fourth Proportional to 32,776.50, 45,235.45 and 18,631.47

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Solution

The fourth proportional to 32,776.50, 45,235.45 and 18,631.47 is: 25,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,776.50 : 45,235.45 = 18,631.47 : x
  2. Step 2: Convert to fraction form
    32,776.50/45,235.45 = 18,631.47/x
  3. Step 3: Cross multiply
    32,776.50x = 45,235.45 × 18,631.47
  4. Step 4: Simplify right side
    32,776.50x = 842,802,929.61
  5. Step 5: Solve for x
    x = 842,802,929.61/32,776.50
  6. Step 6: Final answer
    x = 25,713.63

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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.