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Finding the Fourth Proportional to 7,773.92, 10,728.14 and 4,237.32

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Solution

The fourth proportional to 7,773.92, 10,728.14 and 4,237.32 is: 5,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.92 : 10,728.14 = 4,237.32 : x
  2. Step 2: Convert to fraction form
    7,773.92/10,728.14 = 4,237.32/x
  3. Step 3: Cross multiply
    7,773.92x = 10,728.14 × 4,237.32
  4. Step 4: Simplify right side
    7,773.92x = 45,458,541.00
  5. Step 5: Solve for x
    x = 45,458,541.00/7,773.92
  6. Step 6: Final answer
    x = 5,847.57

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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.