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Finding the Fourth Proportional to 40,252.84, 60,379.26 and 12,553

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Solution

The fourth proportional to 40,252.84, 60,379.26 and 12,553 is: 18,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,252.84 : 60,379.26 = 12,553 : x
  2. Step 2: Convert to fraction form
    40,252.84/60,379.26 = 12,553/x
  3. Step 3: Cross multiply
    40,252.84x = 60,379.26 × 12,553
  4. Step 4: Simplify right side
    40,252.84x = 757,940,850.78
  5. Step 5: Solve for x
    x = 757,940,850.78/40,252.84
  6. Step 6: Final answer
    x = 18,829.50

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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.