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Finding the Fourth Proportional to 7,773.16, 10,724.68 and 4,789.48

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Solution

The fourth proportional to 7,773.16, 10,724.68 and 4,789.48 is: 6,608.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.16 : 10,724.68 = 4,789.48 : x
  2. Step 2: Convert to fraction form
    7,773.16/10,724.68 = 4,789.48/x
  3. Step 3: Cross multiply
    7,773.16x = 10,724.68 × 4,789.48
  4. Step 4: Simplify right side
    7,773.16x = 51,365,640.37
  5. Step 5: Solve for x
    x = 51,365,640.37/7,773.16
  6. Step 6: Final answer
    x = 6,608.08

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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.