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Finding the Fourth Proportional to 8,281.98, 11,429.14 and 4,747.25

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Solution

The fourth proportional to 8,281.98, 11,429.14 and 4,747.25 is: 6,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.98 : 11,429.14 = 4,747.25 : x
  2. Step 2: Convert to fraction form
    8,281.98/11,429.14 = 4,747.25/x
  3. Step 3: Cross multiply
    8,281.98x = 11,429.14 × 4,747.25
  4. Step 4: Simplify right side
    8,281.98x = 54,256,984.87
  5. Step 5: Solve for x
    x = 54,256,984.87/8,281.98
  6. Step 6: Final answer
    x = 6,551.21

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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.