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Finding the Fourth Proportional to 27,900.88, 38,503.24 and 15,326.44

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Solution

The fourth proportional to 27,900.88, 38,503.24 and 15,326.44 is: 21,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.88 : 38,503.24 = 15,326.44 : x
  2. Step 2: Convert to fraction form
    27,900.88/38,503.24 = 15,326.44/x
  3. Step 3: Cross multiply
    27,900.88x = 38,503.24 × 15,326.44
  4. Step 4: Simplify right side
    27,900.88x = 590,117,597.67
  5. Step 5: Solve for x
    x = 590,117,597.67/27,900.88
  6. Step 6: Final answer
    x = 21,150.50

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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.