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Finding the Fourth Proportional to 6,341.21, 8,745.19 and 5,282.49

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Solution

The fourth proportional to 6,341.21, 8,745.19 and 5,282.49 is: 7,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,341.21 : 8,745.19 = 5,282.49 : x
  2. Step 2: Convert to fraction form
    6,341.21/8,745.19 = 5,282.49/x
  3. Step 3: Cross multiply
    6,341.21x = 8,745.19 × 5,282.49
  4. Step 4: Simplify right side
    6,341.21x = 46,196,378.72
  5. Step 5: Solve for x
    x = 46,196,378.72/6,341.21
  6. Step 6: Final answer
    x = 7,285.10

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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.