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Finding the Fourth Proportional to 7,275.97, 10,039.97 and 4,089.43

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Solution

The fourth proportional to 7,275.97, 10,039.97 and 4,089.43 is: 5,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.97 : 10,039.97 = 4,089.43 : x
  2. Step 2: Convert to fraction form
    7,275.97/10,039.97 = 4,089.43/x
  3. Step 3: Cross multiply
    7,275.97x = 10,039.97 × 4,089.43
  4. Step 4: Simplify right side
    7,275.97x = 41,057,739.64
  5. Step 5: Solve for x
    x = 41,057,739.64/7,275.97
  6. Step 6: Final answer
    x = 5,642.93

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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.