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Finding the Fourth Proportional to 27,653.52, 38,161.80 and 15,078.32

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Solution

The fourth proportional to 27,653.52, 38,161.80 and 15,078.32 is: 20,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.52 : 38,161.80 = 15,078.32 : x
  2. Step 2: Convert to fraction form
    27,653.52/38,161.80 = 15,078.32/x
  3. Step 3: Cross multiply
    27,653.52x = 38,161.80 × 15,078.32
  4. Step 4: Simplify right side
    27,653.52x = 575,415,832.18
  5. Step 5: Solve for x
    x = 575,415,832.18/27,653.52
  6. Step 6: Final answer
    x = 20,808.05

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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.