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Finding the Fourth Proportional to 9,758.86, 13,454.16 and 6,396.41

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Solution

The fourth proportional to 9,758.86, 13,454.16 and 6,396.41 is: 8,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,758.86 : 13,454.16 = 6,396.41 : x
  2. Step 2: Convert to fraction form
    9,758.86/13,454.16 = 6,396.41/x
  3. Step 3: Cross multiply
    9,758.86x = 13,454.16 × 6,396.41
  4. Step 4: Simplify right side
    9,758.86x = 86,058,323.57
  5. Step 5: Solve for x
    x = 86,058,323.57/9,758.86
  6. Step 6: Final answer
    x = 8,818.48

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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.