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Finding the Fourth Proportional to 8,791.98, 12,132.93 and 4,813.08

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Solution

The fourth proportional to 8,791.98, 12,132.93 and 4,813.08 is: 6,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.98 : 12,132.93 = 4,813.08 : x
  2. Step 2: Convert to fraction form
    8,791.98/12,132.93 = 4,813.08/x
  3. Step 3: Cross multiply
    8,791.98x = 12,132.93 × 4,813.08
  4. Step 4: Simplify right side
    8,791.98x = 58,396,762.72
  5. Step 5: Solve for x
    x = 58,396,762.72/8,791.98
  6. Step 6: Final answer
    x = 6,642.05

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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.