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Finding the Fourth Proportional to 10,791.96, 14,884.38 and 7,065.24

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Solution

The fourth proportional to 10,791.96, 14,884.38 and 7,065.24 is: 9,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.96 : 14,884.38 = 7,065.24 : x
  2. Step 2: Convert to fraction form
    10,791.96/14,884.38 = 7,065.24/x
  3. Step 3: Cross multiply
    10,791.96x = 14,884.38 × 7,065.24
  4. Step 4: Simplify right side
    10,791.96x = 105,161,716.95
  5. Step 5: Solve for x
    x = 105,161,716.95/10,791.96
  6. Step 6: Final answer
    x = 9,744.45

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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.