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Finding the Fourth Proportional to 22,348.35, 30,855.15 and 13,859.46

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Solution

The fourth proportional to 22,348.35, 30,855.15 and 13,859.46 is: 19,135.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,348.35 : 30,855.15 = 13,859.46 : x
  2. Step 2: Convert to fraction form
    22,348.35/30,855.15 = 13,859.46/x
  3. Step 3: Cross multiply
    22,348.35x = 30,855.15 × 13,859.46
  4. Step 4: Simplify right side
    22,348.35x = 427,635,717.22
  5. Step 5: Solve for x
    x = 427,635,717.22/22,348.35
  6. Step 6: Final answer
    x = 19,135.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.