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Finding the Fourth Proportional to 8,791.06, 12,132.12 and 6,558.98

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Solution

The fourth proportional to 8,791.06, 12,132.12 and 6,558.98 is: 9,051.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.06 : 12,132.12 = 6,558.98 : x
  2. Step 2: Convert to fraction form
    8,791.06/12,132.12 = 6,558.98/x
  3. Step 3: Cross multiply
    8,791.06x = 12,132.12 × 6,558.98
  4. Step 4: Simplify right side
    8,791.06x = 79,574,332.44
  5. Step 5: Solve for x
    x = 79,574,332.44/8,791.06
  6. Step 6: Final answer
    x = 9,051.73

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1.5x scale

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.