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Finding the Fourth Proportional to 17,611,929.90, 26,417,894.85 and 8,045,991.90

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Solution

The fourth proportional to 17,611,929.90, 26,417,894.85 and 8,045,991.90 is: 12,068,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611,929.90 : 26,417,894.85 = 8,045,991.90 : x
  2. Step 2: Convert to fraction form
    17,611,929.90/26,417,894.85 = 8,045,991.90/x
  3. Step 3: Cross multiply
    17,611,929.90x = 26,417,894.85 × 8,045,991.90
  4. Step 4: Simplify right side
    17,611,929.90x = 212,558,167,978,151.75
  5. Step 5: Solve for x
    x = 212,558,167,978,151.75/17,611,929.90
  6. Step 6: Final answer
    x = 12,068,987.85

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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.