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Finding the Fourth Proportional to 7,951,714.60, 11,927,571.90 and 6,692,002.60

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Solution

The fourth proportional to 7,951,714.60, 11,927,571.90 and 6,692,002.60 is: 10,038,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951,714.60 : 11,927,571.90 = 6,692,002.60 : x
  2. Step 2: Convert to fraction form
    7,951,714.60/11,927,571.90 = 6,692,002.60/x
  3. Step 3: Cross multiply
    7,951,714.60x = 11,927,571.90 × 6,692,002.60
  4. Step 4: Simplify right side
    7,951,714.60x = 79,819,342,166,486.94
  5. Step 5: Solve for x
    x = 79,819,342,166,486.94/7,951,714.60
  6. Step 6: Final answer
    x = 10,038,003.90

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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.