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Finding the Fourth Proportional to 8,842,391.21, 12,202,374.78 and 4,974,903.11

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Solution

The fourth proportional to 8,842,391.21, 12,202,374.78 and 4,974,903.11 is: 6,865,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842,391.21 : 12,202,374.78 = 4,974,903.11 : x
  2. Step 2: Convert to fraction form
    8,842,391.21/12,202,374.78 = 4,974,903.11/x
  3. Step 3: Cross multiply
    8,842,391.21x = 12,202,374.78 × 4,974,903.11
  4. Step 4: Simplify right side
    8,842,391.21x = 60,705,632,181,395.70
  5. Step 5: Solve for x
    x = 60,705,632,181,395.70/8,842,391.21
  6. Step 6: Final answer
    x = 6,865,295.91

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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.