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Finding the Fourth Proportional to 8,454.67, 11,664.60 and 4,914.97

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Solution

The fourth proportional to 8,454.67, 11,664.60 and 4,914.97 is: 6,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.67 : 11,664.60 = 4,914.97 : x
  2. Step 2: Convert to fraction form
    8,454.67/11,664.60 = 4,914.97/x
  3. Step 3: Cross multiply
    8,454.67x = 11,664.60 × 4,914.97
  4. Step 4: Simplify right side
    8,454.67x = 57,331,159.06
  5. Step 5: Solve for x
    x = 57,331,159.06/8,454.67
  6. Step 6: Final answer
    x = 6,781.00

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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.