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Finding the Fourth Proportional to 32,978.06, 45,518.03 and 18,839.11

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Solution

The fourth proportional to 32,978.06, 45,518.03 and 18,839.11 is: 26,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,978.06 : 45,518.03 = 18,839.11 : x
  2. Step 2: Convert to fraction form
    32,978.06/45,518.03 = 18,839.11/x
  3. Step 3: Cross multiply
    32,978.06x = 45,518.03 × 18,839.11
  4. Step 4: Simplify right side
    32,978.06x = 857,519,036.81
  5. Step 5: Solve for x
    x = 857,519,036.81/32,978.06
  6. Step 6: Final answer
    x = 26,002.71

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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.