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Finding the Fourth Proportional to 35,491,238.40, 48,978,056.62 and 19,193,714.40

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Solution

The fourth proportional to 35,491,238.40, 48,978,056.62 and 19,193,714.40 is: 26,487,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491,238.40 : 48,978,056.62 = 19,193,714.40 : x
  2. Step 2: Convert to fraction form
    35,491,238.40/48,978,056.62 = 19,193,714.40/x
  3. Step 3: Cross multiply
    35,491,238.40x = 48,978,056.62 × 19,193,714.40
  4. Step 4: Simplify right side
    35,491,238.40x = 940,070,830,631,309.25
  5. Step 5: Solve for x
    x = 940,070,830,631,309.25/35,491,238.40
  6. Step 6: Final answer
    x = 26,487,405.71

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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.