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Finding the Fourth Proportional to 25,644.99, 38,467.49 and 8,116.19

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Solution

The fourth proportional to 25,644.99, 38,467.49 and 8,116.19 is: 12,174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.99 : 38,467.49 = 8,116.19 : x
  2. Step 2: Convert to fraction form
    25,644.99/38,467.49 = 8,116.19/x
  3. Step 3: Cross multiply
    25,644.99x = 38,467.49 × 8,116.19
  4. Step 4: Simplify right side
    25,644.99x = 312,209,457.66
  5. Step 5: Solve for x
    x = 312,209,457.66/25,644.99
  6. Step 6: Final answer
    x = 12,174.29

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Double scale
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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.