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Finding the Fourth Proportional to 21,630.67, 32,432.06 and 8,484.37

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Solution

The fourth proportional to 21,630.67, 32,432.06 and 8,484.37 is: 12,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.67 : 32,432.06 = 8,484.37 : x
  2. Step 2: Convert to fraction form
    21,630.67/32,432.06 = 8,484.37/x
  3. Step 3: Cross multiply
    21,630.67x = 32,432.06 × 8,484.37
  4. Step 4: Simplify right side
    21,630.67x = 275,165,554.48
  5. Step 5: Solve for x
    x = 275,165,554.48/21,630.67
  6. Step 6: Final answer
    x = 12,721.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.