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Finding the Fourth Proportional to 29,420.75, 44,131.13 and 8,644.25

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Solution

The fourth proportional to 29,420.75, 44,131.13 and 8,644.25 is: 12,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.75 : 44,131.13 = 8,644.25 : x
  2. Step 2: Convert to fraction form
    29,420.75/44,131.13 = 8,644.25/x
  3. Step 3: Cross multiply
    29,420.75x = 44,131.13 × 8,644.25
  4. Step 4: Simplify right side
    29,420.75x = 381,480,477.28
  5. Step 5: Solve for x
    x = 381,480,477.28/29,420.75
  6. Step 6: Final answer
    x = 12,966.38

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Double scale
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Similar ratio
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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.