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Finding the Fourth Proportional to 8,656.25, 11,945.63 and 4,930.97

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Solution

The fourth proportional to 8,656.25, 11,945.63 and 4,930.97 is: 6,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.25 : 11,945.63 = 4,930.97 : x
  2. Step 2: Convert to fraction form
    8,656.25/11,945.63 = 4,930.97/x
  3. Step 3: Cross multiply
    8,656.25x = 11,945.63 × 4,930.97
  4. Step 4: Simplify right side
    8,656.25x = 58,903,543.16
  5. Step 5: Solve for x
    x = 58,903,543.16/8,656.25
  6. Step 6: Final answer
    x = 6,804.74

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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.