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Finding the Fourth Proportional to 12,843.13, 19,266.22 and 4,943.81

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Solution

The fourth proportional to 12,843.13, 19,266.22 and 4,943.81 is: 7,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.13 : 19,266.22 = 4,943.81 : x
  2. Step 2: Convert to fraction form
    12,843.13/19,266.22 = 4,943.81/x
  3. Step 3: Cross multiply
    12,843.13x = 19,266.22 × 4,943.81
  4. Step 4: Simplify right side
    12,843.13x = 95,248,434.77
  5. Step 5: Solve for x
    x = 95,248,434.77/12,843.13
  6. Step 6: Final answer
    x = 7,416.29

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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.