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Finding the Fourth Proportional to 17,328.76, 25,990.44 and 5,641.90

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Solution

The fourth proportional to 17,328.76, 25,990.44 and 5,641.90 is: 8,461.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,328.76 : 25,990.44 = 5,641.90 : x
  2. Step 2: Convert to fraction form
    17,328.76/25,990.44 = 5,641.90/x
  3. Step 3: Cross multiply
    17,328.76x = 25,990.44 × 5,641.90
  4. Step 4: Simplify right side
    17,328.76x = 146,635,463.44
  5. Step 5: Solve for x
    x = 146,635,463.44/17,328.76
  6. Step 6: Final answer
    x = 8,461.97

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1.5x scale

Why These Related Problems?

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