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Finding the Fourth Proportional to 7,479.51, 10,322.17 and 4,122.33

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Solution

The fourth proportional to 7,479.51, 10,322.17 and 4,122.33 is: 5,689.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.51 : 10,322.17 = 4,122.33 : x
  2. Step 2: Convert to fraction form
    7,479.51/10,322.17 = 4,122.33/x
  3. Step 3: Cross multiply
    7,479.51x = 10,322.17 × 4,122.33
  4. Step 4: Simplify right side
    7,479.51x = 42,551,342.04
  5. Step 5: Solve for x
    x = 42,551,342.04/7,479.51
  6. Step 6: Final answer
    x = 5,689.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.