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Finding the Fourth Proportional to 15,068,868.03, 20,794,892.94 and 8,193,351.51

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Solution

The fourth proportional to 15,068,868.03, 20,794,892.94 and 8,193,351.51 is: 11,306,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068,868.03 : 20,794,892.94 = 8,193,351.51 : x
  2. Step 2: Convert to fraction form
    15,068,868.03/20,794,892.94 = 8,193,351.51/x
  3. Step 3: Cross multiply
    15,068,868.03x = 20,794,892.94 × 8,193,351.51
  4. Step 4: Simplify right side
    15,068,868.03x = 170,379,867,470,237.34
  5. Step 5: Solve for x
    x = 170,379,867,470,237.34/15,068,868.03
  6. Step 6: Final answer
    x = 11,306,746.28

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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.