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Finding the Fourth Proportional to 27,865.71, 38,436.47 and 16,526.72

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Solution

The fourth proportional to 27,865.71, 38,436.47 and 16,526.72 is: 22,796.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.71 : 38,436.47 = 16,526.72 : x
  2. Step 2: Convert to fraction form
    27,865.71/38,436.47 = 16,526.72/x
  3. Step 3: Cross multiply
    27,865.71x = 38,436.47 × 16,526.72
  4. Step 4: Simplify right side
    27,865.71x = 635,228,502.66
  5. Step 5: Solve for x
    x = 635,228,502.66/27,865.71
  6. Step 6: Final answer
    x = 22,796.06

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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.