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Finding the Fourth Proportional to 12,697,774.06, 17,522,978.25 and 6,896,652.61

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Solution

The fourth proportional to 12,697,774.06, 17,522,978.25 and 6,896,652.61 is: 9,517,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697,774.06 : 17,522,978.25 = 6,896,652.61 : x
  2. Step 2: Convert to fraction form
    12,697,774.06/17,522,978.25 = 6,896,652.61/x
  3. Step 3: Cross multiply
    12,697,774.06x = 17,522,978.25 × 6,896,652.61
  4. Step 4: Simplify right side
    12,697,774.06x = 120,849,893,682,835.73
  5. Step 5: Solve for x
    x = 120,849,893,682,835.73/12,697,774.06
  6. Step 6: Final answer
    x = 9,517,407.78

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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.