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Finding the Fourth Proportional to 19,361,961.88, 29,052,740.58 and 8,010,557.08

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Solution

The fourth proportional to 19,361,961.88, 29,052,740.58 and 8,010,557.08 is: 12,019,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361,961.88 : 29,052,740.58 = 8,010,557.08 : x
  2. Step 2: Convert to fraction form
    19,361,961.88/29,052,740.58 = 8,010,557.08/x
  3. Step 3: Cross multiply
    19,361,961.88x = 29,052,740.58 × 8,010,557.08
  4. Step 4: Simplify right side
    19,361,961.88x = 232,728,636,746,522.28
  5. Step 5: Solve for x
    x = 232,728,636,746,522.28/19,361,961.88
  6. Step 6: Final answer
    x = 12,019,889.21

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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.