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Finding the Fourth Proportional to 8,687,442.34, 11,988,671.88 and 4,819,954.29

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Solution

The fourth proportional to 8,687,442.34, 11,988,671.88 and 4,819,954.29 is: 6,651,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687,442.34 : 11,988,671.88 = 4,819,954.29 : x
  2. Step 2: Convert to fraction form
    8,687,442.34/11,988,671.88 = 4,819,954.29/x
  3. Step 3: Cross multiply
    8,687,442.34x = 11,988,671.88 × 4,819,954.29
  4. Step 4: Simplify right side
    8,687,442.34x = 57,784,850,459,408.37
  5. Step 5: Solve for x
    x = 57,784,850,459,408.37/8,687,442.34
  6. Step 6: Final answer
    x = 6,651,537.73

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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.