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Finding the Fourth Proportional to 8,893.98, 12,269.61 and 5,751.18

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Solution

The fourth proportional to 8,893.98, 12,269.61 and 5,751.18 is: 7,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.98 : 12,269.61 = 5,751.18 : x
  2. Step 2: Convert to fraction form
    8,893.98/12,269.61 = 5,751.18/x
  3. Step 3: Cross multiply
    8,893.98x = 12,269.61 × 5,751.18
  4. Step 4: Simplify right side
    8,893.98x = 70,564,735.64
  5. Step 5: Solve for x
    x = 70,564,735.64/8,893.98
  6. Step 6: Final answer
    x = 7,933.99

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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.