Home / 7,965.47-10,979.73-7,322.33

Finding the Fourth Proportional to 7,965.47, 10,979.73 and 7,322.33

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Solution

The fourth proportional to 7,965.47, 10,979.73 and 7,322.33 is: 10,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.47 : 10,979.73 = 7,322.33 : x
  2. Step 2: Convert to fraction form
    7,965.47/10,979.73 = 7,322.33/x
  3. Step 3: Cross multiply
    7,965.47x = 10,979.73 × 7,322.33
  4. Step 4: Simplify right side
    7,965.47x = 80,397,151.47
  5. Step 5: Solve for x
    x = 80,397,151.47/7,965.47
  6. Step 6: Final answer
    x = 10,093.22

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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.