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Finding the Fourth Proportional to 19,157,099.15, 28,735,648.73 and 19,157,099.15

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Solution

The fourth proportional to 19,157,099.15, 28,735,648.73 and 19,157,099.15 is: 28,735,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,099.15 : 28,735,648.73 = 19,157,099.15 : x
  2. Step 2: Convert to fraction form
    19,157,099.15/28,735,648.73 = 19,157,099.15/x
  3. Step 3: Cross multiply
    19,157,099.15x = 28,735,648.73 × 19,157,099.15
  4. Step 4: Simplify right side
    19,157,099.15x = 550,491,671,860,181.56
  5. Step 5: Solve for x
    x = 550,491,671,860,181.56/19,157,099.15
  6. Step 6: Final answer
    x = 28,735,648.73

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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.