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Finding the Fourth Proportional to 27,802.80, 38,367.86 and 15,227.55

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Solution

The fourth proportional to 27,802.80, 38,367.86 and 15,227.55 is: 21,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,802.80 : 38,367.86 = 15,227.55 : x
  2. Step 2: Convert to fraction form
    27,802.80/38,367.86 = 15,227.55/x
  3. Step 3: Cross multiply
    27,802.80x = 38,367.86 × 15,227.55
  4. Step 4: Simplify right side
    27,802.80x = 584,248,430.41
  5. Step 5: Solve for x
    x = 584,248,430.41/27,802.80
  6. Step 6: Final answer
    x = 21,014.01

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