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Finding the Fourth Proportional to 45,892.26, 68,839.16 and 12,612.13

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Solution

The fourth proportional to 45,892.26, 68,839.16 and 12,612.13 is: 18,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,892.26 : 68,839.16 = 12,612.13 : x
  2. Step 2: Convert to fraction form
    45,892.26/68,839.16 = 12,612.13/x
  3. Step 3: Cross multiply
    45,892.26x = 68,839.16 × 12,612.13
  4. Step 4: Simplify right side
    45,892.26x = 868,208,199.85
  5. Step 5: Solve for x
    x = 868,208,199.85/45,892.26
  6. Step 6: Final answer
    x = 18,918.40

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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.