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Finding the Fourth Proportional to 8,841.16, 12,198.90 and 5,113

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Solution

The fourth proportional to 8,841.16, 12,198.90 and 5,113 is: 7,054.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.16 : 12,198.90 = 5,113 : x
  2. Step 2: Convert to fraction form
    8,841.16/12,198.90 = 5,113/x
  3. Step 3: Cross multiply
    8,841.16x = 12,198.90 × 5,113
  4. Step 4: Simplify right side
    8,841.16x = 62,372,975.70
  5. Step 5: Solve for x
    x = 62,372,975.70/8,841.16
  6. Step 6: Final answer
    x = 7,054.84

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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.