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Finding the Fourth Proportional to 7,130.79, 9,843.93 and 4,744.73

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Solution

The fourth proportional to 7,130.79, 9,843.93 and 4,744.73 is: 6,550.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.79 : 9,843.93 = 4,744.73 : x
  2. Step 2: Convert to fraction form
    7,130.79/9,843.93 = 4,744.73/x
  3. Step 3: Cross multiply
    7,130.79x = 9,843.93 × 4,744.73
  4. Step 4: Simplify right side
    7,130.79x = 46,706,789.99
  5. Step 5: Solve for x
    x = 46,706,789.99/7,130.79
  6. Step 6: Final answer
    x = 6,550.02

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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.