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Finding the Fourth Proportional to 7,203.47, 9,940.79 and 4,016.71

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Solution

The fourth proportional to 7,203.47, 9,940.79 and 4,016.71 is: 5,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.47 : 9,940.79 = 4,016.71 : x
  2. Step 2: Convert to fraction form
    7,203.47/9,940.79 = 4,016.71/x
  3. Step 3: Cross multiply
    7,203.47x = 9,940.79 × 4,016.71
  4. Step 4: Simplify right side
    7,203.47x = 39,929,304.08
  5. Step 5: Solve for x
    x = 39,929,304.08/7,203.47
  6. Step 6: Final answer
    x = 5,543.07

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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.