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Finding the Fourth Proportional to 35,491,249.40, 48,978,071.80 and 19,193,725.40

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Solution

The fourth proportional to 35,491,249.40, 48,978,071.80 and 19,193,725.40 is: 26,487,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491,249.40 : 48,978,071.80 = 19,193,725.40 : x
  2. Step 2: Convert to fraction form
    35,491,249.40/48,978,071.80 = 19,193,725.40/x
  3. Step 3: Cross multiply
    35,491,249.40x = 48,978,071.80 × 19,193,725.40
  4. Step 4: Simplify right side
    35,491,249.40x = 940,071,660,750,683.62
  5. Step 5: Solve for x
    x = 940,071,660,750,683.62/35,491,249.40
  6. Step 6: Final answer
    x = 26,487,420.89

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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.