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Finding the Fourth Proportional to 9,271.63, 12,795.05 and 5,079.88

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Solution

The fourth proportional to 9,271.63, 12,795.05 and 5,079.88 is: 7,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.63 : 12,795.05 = 5,079.88 : x
  2. Step 2: Convert to fraction form
    9,271.63/12,795.05 = 5,079.88/x
  3. Step 3: Cross multiply
    9,271.63x = 12,795.05 × 5,079.88
  4. Step 4: Simplify right side
    9,271.63x = 64,997,229.22
  5. Step 5: Solve for x
    x = 64,997,229.22/9,271.63
  6. Step 6: Final answer
    x = 7,010.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.