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Finding the Fourth Proportional to 27,596.63, 38,010.80 and 21,211.01

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Solution

The fourth proportional to 27,596.63, 38,010.80 and 21,211.01 is: 29,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,596.63 : 38,010.80 = 21,211.01 : x
  2. Step 2: Convert to fraction form
    27,596.63/38,010.80 = 21,211.01/x
  3. Step 3: Cross multiply
    27,596.63x = 38,010.80 × 21,211.01
  4. Step 4: Simplify right side
    27,596.63x = 806,247,458.91
  5. Step 5: Solve for x
    x = 806,247,458.91/27,596.63
  6. Step 6: Final answer
    x = 29,215.43

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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.