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Finding the Fourth Proportional to 8,719.93, 13,094.48 and 8,651.89

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Solution

The fourth proportional to 8,719.93, 13,094.48 and 8,651.89 is: 12,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.93 : 13,094.48 = 8,651.89 : x
  2. Step 2: Convert to fraction form
    8,719.93/13,094.48 = 8,651.89/x
  3. Step 3: Cross multiply
    8,719.93x = 13,094.48 × 8,651.89
  4. Step 4: Simplify right side
    8,719.93x = 113,291,957.31
  5. Step 5: Solve for x
    x = 113,291,957.31/8,719.93
  6. Step 6: Final answer
    x = 12,992.30

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Why These Related Problems?

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