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Finding the Fourth Proportional to 52,672.68, 79,019.28 and 19,393.02

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Solution

The fourth proportional to 52,672.68, 79,019.28 and 19,393.02 is: 29,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,672.68 : 79,019.28 = 19,393.02 : x
  2. Step 2: Convert to fraction form
    52,672.68/79,019.28 = 19,393.02/x
  3. Step 3: Cross multiply
    52,672.68x = 79,019.28 × 19,393.02
  4. Step 4: Simplify right side
    52,672.68x = 1,532,422,477.43
  5. Step 5: Solve for x
    x = 1,532,422,477.43/52,672.68
  6. Step 6: Final answer
    x = 29,093.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.