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Finding the Fourth Proportional to 7,841.56, 11,745.06 and 4,757.08

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Solution

The fourth proportional to 7,841.56, 11,745.06 and 4,757.08 is: 7,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.56 : 11,745.06 = 4,757.08 : x
  2. Step 2: Convert to fraction form
    7,841.56/11,745.06 = 4,757.08/x
  3. Step 3: Cross multiply
    7,841.56x = 11,745.06 × 4,757.08
  4. Step 4: Simplify right side
    7,841.56x = 55,872,190.02
  5. Step 5: Solve for x
    x = 55,872,190.02/7,841.56
  6. Step 6: Final answer
    x = 7,125.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.