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Finding the Fourth Proportional to 15,071.01, 20,797.77 and 8,356.65

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Solution

The fourth proportional to 15,071.01, 20,797.77 and 8,356.65 is: 11,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.01 : 20,797.77 = 8,356.65 : x
  2. Step 2: Convert to fraction form
    15,071.01/20,797.77 = 8,356.65/x
  3. Step 3: Cross multiply
    15,071.01x = 20,797.77 × 8,356.65
  4. Step 4: Simplify right side
    15,071.01x = 173,799,684.67
  5. Step 5: Solve for x
    x = 173,799,684.67/15,071.01
  6. Step 6: Final answer
    x = 11,532.05

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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.