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Finding the Fourth Proportional to 8,177.82, 11,285.28 and 4,641

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Solution

The fourth proportional to 8,177.82, 11,285.28 and 4,641 is: 6,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.82 : 11,285.28 = 4,641 : x
  2. Step 2: Convert to fraction form
    8,177.82/11,285.28 = 4,641/x
  3. Step 3: Cross multiply
    8,177.82x = 11,285.28 × 4,641
  4. Step 4: Simplify right side
    8,177.82x = 52,374,984.48
  5. Step 5: Solve for x
    x = 52,374,984.48/8,177.82
  6. Step 6: Final answer
    x = 6,404.52

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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.