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Finding the Fourth Proportional to 17,973,145.60, 26,959,718.40 and 5,194,067.20

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Solution

The fourth proportional to 17,973,145.60, 26,959,718.40 and 5,194,067.20 is: 7,791,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,973,145.60 : 26,959,718.40 = 5,194,067.20 : x
  2. Step 2: Convert to fraction form
    17,973,145.60/26,959,718.40 = 5,194,067.20/x
  3. Step 3: Cross multiply
    17,973,145.60x = 26,959,718.40 × 5,194,067.20
  4. Step 4: Simplify right side
    17,973,145.60x = 140,030,589,062,676.48
  5. Step 5: Solve for x
    x = 140,030,589,062,676.48/17,973,145.60
  6. Step 6: Final answer
    x = 7,791,100.80

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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.