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Finding the Fourth Proportional to 9,395.90, 12,964.22 and 5,618.44

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Solution

The fourth proportional to 9,395.90, 12,964.22 and 5,618.44 is: 7,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.90 : 12,964.22 = 5,618.44 : x
  2. Step 2: Convert to fraction form
    9,395.90/12,964.22 = 5,618.44/x
  3. Step 3: Cross multiply
    9,395.90x = 12,964.22 × 5,618.44
  4. Step 4: Simplify right side
    9,395.90x = 72,838,692.22
  5. Step 5: Solve for x
    x = 72,838,692.22/9,395.90
  6. Step 6: Final answer
    x = 7,752.18

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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.