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Finding the Fourth Proportional to 27,398.60, 37,809.42 and 15,462.44

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Solution

The fourth proportional to 27,398.60, 37,809.42 and 15,462.44 is: 21,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,398.60 : 37,809.42 = 15,462.44 : x
  2. Step 2: Convert to fraction form
    27,398.60/37,809.42 = 15,462.44/x
  3. Step 3: Cross multiply
    27,398.60x = 37,809.42 × 15,462.44
  4. Step 4: Simplify right side
    27,398.60x = 584,625,888.18
  5. Step 5: Solve for x
    x = 584,625,888.18/27,398.60
  6. Step 6: Final answer
    x = 21,337.80

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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.