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Finding the Fourth Proportional to 27,898.74, 38,499.84 and 15,965.01

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Solution

The fourth proportional to 27,898.74, 38,499.84 and 15,965.01 is: 22,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.74 : 38,499.84 = 15,965.01 : x
  2. Step 2: Convert to fraction form
    27,898.74/38,499.84 = 15,965.01/x
  3. Step 3: Cross multiply
    27,898.74x = 38,499.84 × 15,965.01
  4. Step 4: Simplify right side
    27,898.74x = 614,650,330.60
  5. Step 5: Solve for x
    x = 614,650,330.60/27,898.74
  6. Step 6: Final answer
    x = 22,031.47

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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.