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Finding the Fourth Proportional to 7,091.28, 9,783.33 and 7,080.33

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Solution

The fourth proportional to 7,091.28, 9,783.33 and 7,080.33 is: 9,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.28 : 9,783.33 = 7,080.33 : x
  2. Step 2: Convert to fraction form
    7,091.28/9,783.33 = 7,080.33/x
  3. Step 3: Cross multiply
    7,091.28x = 9,783.33 × 7,080.33
  4. Step 4: Simplify right side
    7,091.28x = 69,269,204.90
  5. Step 5: Solve for x
    x = 69,269,204.90/7,091.28
  6. Step 6: Final answer
    x = 9,768.22

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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.