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Finding the Fourth Proportional to 7,773.92, 10,728.01 and 4,237.13

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Solution

The fourth proportional to 7,773.92, 10,728.01 and 4,237.13 is: 5,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.92 : 10,728.01 = 4,237.13 : x
  2. Step 2: Convert to fraction form
    7,773.92/10,728.01 = 4,237.13/x
  3. Step 3: Cross multiply
    7,773.92x = 10,728.01 × 4,237.13
  4. Step 4: Simplify right side
    7,773.92x = 45,455,973.01
  5. Step 5: Solve for x
    x = 45,455,973.01/7,773.92
  6. Step 6: Final answer
    x = 5,847.24

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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.