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Finding the Fourth Proportional to 12,648,959.44, 18,973,094.64 and 3,551,132.32

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Solution

The fourth proportional to 12,648,959.44, 18,973,094.64 and 3,551,132.32 is: 5,326,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648,959.44 : 18,973,094.64 = 3,551,132.32 : x
  2. Step 2: Convert to fraction form
    12,648,959.44/18,973,094.64 = 3,551,132.32/x
  3. Step 3: Cross multiply
    12,648,959.44x = 18,973,094.64 × 3,551,132.32
  4. Step 4: Simplify right side
    12,648,959.44x = 67,375,969,586,522.77
  5. Step 5: Solve for x
    x = 67,375,969,586,522.77/12,648,959.44
  6. Step 6: Final answer
    x = 5,326,601.76

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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.