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Finding the Fourth Proportional to 8,168, 11,271.92 and 4,442.08

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Solution

The fourth proportional to 8,168, 11,271.92 and 4,442.08 is: 6,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168 : 11,271.92 = 4,442.08 : x
  2. Step 2: Convert to fraction form
    8,168/11,271.92 = 4,442.08/x
  3. Step 3: Cross multiply
    8,168x = 11,271.92 × 4,442.08
  4. Step 4: Simplify right side
    8,168x = 50,070,770.39
  5. Step 5: Solve for x
    x = 50,070,770.39/8,168
  6. Step 6: Final answer
    x = 6,130.11

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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.