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Finding the Fourth Proportional to 15,776.19, 23,665.55 and 5,245.83

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Solution

The fourth proportional to 15,776.19, 23,665.55 and 5,245.83 is: 7,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.19 : 23,665.55 = 5,245.83 : x
  2. Step 2: Convert to fraction form
    15,776.19/23,665.55 = 5,245.83/x
  3. Step 3: Cross multiply
    15,776.19x = 23,665.55 × 5,245.83
  4. Step 4: Simplify right side
    15,776.19x = 124,145,425.93
  5. Step 5: Solve for x
    x = 124,145,425.93/15,776.19
  6. Step 6: Final answer
    x = 7,869.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.