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Finding the Fourth Proportional to 8,968,289.76, 12,376,503.12 and 4,894,171.68

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Solution

The fourth proportional to 8,968,289.76, 12,376,503.12 and 4,894,171.68 is: 6,754,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968,289.76 : 12,376,503.12 = 4,894,171.68 : x
  2. Step 2: Convert to fraction form
    8,968,289.76/12,376,503.12 = 4,894,171.68/x
  3. Step 3: Cross multiply
    8,968,289.76x = 12,376,503.12 × 4,894,171.68
  4. Step 4: Simplify right side
    8,968,289.76x = 60,572,731,067,335.63
  5. Step 5: Solve for x
    x = 60,572,731,067,335.63/8,968,289.76
  6. Step 6: Final answer
    x = 6,754,100.58

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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.