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Finding the Fourth Proportional to 7,275.06, 10,039.59 and 3,963.06

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Solution

The fourth proportional to 7,275.06, 10,039.59 and 3,963.06 is: 5,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.06 : 10,039.59 = 3,963.06 : x
  2. Step 2: Convert to fraction form
    7,275.06/10,039.59 = 3,963.06/x
  3. Step 3: Cross multiply
    7,275.06x = 10,039.59 × 3,963.06
  4. Step 4: Simplify right side
    7,275.06x = 39,787,512.74
  5. Step 5: Solve for x
    x = 39,787,512.74/7,275.06
  6. Step 6: Final answer
    x = 5,469.03

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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.