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Finding the Fourth Proportional to 8,360.40, 11,537.28 and 4,634.40

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Solution

The fourth proportional to 8,360.40, 11,537.28 and 4,634.40 is: 6,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.40 : 11,537.28 = 4,634.40 : x
  2. Step 2: Convert to fraction form
    8,360.40/11,537.28 = 4,634.40/x
  3. Step 3: Cross multiply
    8,360.40x = 11,537.28 × 4,634.40
  4. Step 4: Simplify right side
    8,360.40x = 53,468,370.43
  5. Step 5: Solve for x
    x = 53,468,370.43/8,360.40
  6. Step 6: Final answer
    x = 6,395.43

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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.