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Finding the Fourth Proportional to 8,727,877.74, 12,044,745.45 and 4,807,918.19

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Solution

The fourth proportional to 8,727,877.74, 12,044,745.45 and 4,807,918.19 is: 6,635,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727,877.74 : 12,044,745.45 = 4,807,918.19 : x
  2. Step 2: Convert to fraction form
    8,727,877.74/12,044,745.45 = 4,807,918.19/x
  3. Step 3: Cross multiply
    8,727,877.74x = 12,044,745.45 × 4,807,918.19
  4. Step 4: Simplify right side
    8,727,877.74x = 57,910,150,682,751
  5. Step 5: Solve for x
    x = 57,910,150,682,751/8,727,877.74
  6. Step 6: Final answer
    x = 6,635,078.13

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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.