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Finding the Fourth Proportional to 9,253.15, 12,757.77 and 7,722.28

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Solution

The fourth proportional to 9,253.15, 12,757.77 and 7,722.28 is: 10,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,253.15 : 12,757.77 = 7,722.28 : x
  2. Step 2: Convert to fraction form
    9,253.15/12,757.77 = 7,722.28/x
  3. Step 3: Cross multiply
    9,253.15x = 12,757.77 × 7,722.28
  4. Step 4: Simplify right side
    9,253.15x = 98,519,040.22
  5. Step 5: Solve for x
    x = 98,519,040.22/9,253.15
  6. Step 6: Final answer
    x = 10,647.08

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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.