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Finding the Fourth Proportional to 9,395.14, 12,964.20 and 5,416.22

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Solution

The fourth proportional to 9,395.14, 12,964.20 and 5,416.22 is: 7,473.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.14 : 12,964.20 = 5,416.22 : x
  2. Step 2: Convert to fraction form
    9,395.14/12,964.20 = 5,416.22/x
  3. Step 3: Cross multiply
    9,395.14x = 12,964.20 × 5,416.22
  4. Step 4: Simplify right side
    9,395.14x = 70,216,959.32
  5. Step 5: Solve for x
    x = 70,216,959.32/9,395.14
  6. Step 6: Final answer
    x = 7,473.75

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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.