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Finding the Fourth Proportional to 36,454.78, 54,682.16 and 8,752.78

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Solution

The fourth proportional to 36,454.78, 54,682.16 and 8,752.78 is: 13,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,454.78 : 54,682.16 = 8,752.78 : x
  2. Step 2: Convert to fraction form
    36,454.78/54,682.16 = 8,752.78/x
  3. Step 3: Cross multiply
    36,454.78x = 54,682.16 × 8,752.78
  4. Step 4: Simplify right side
    36,454.78x = 478,620,916.40
  5. Step 5: Solve for x
    x = 478,620,916.40/36,454.78
  6. Step 6: Final answer
    x = 13,129.17

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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.