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Finding the Fourth Proportional to 8,472,828.61, 11,692,217.32 and 4,850,456.77

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Solution

The fourth proportional to 8,472,828.61, 11,692,217.32 and 4,850,456.77 is: 6,693,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472,828.61 : 11,692,217.32 = 4,850,456.77 : x
  2. Step 2: Convert to fraction form
    8,472,828.61/11,692,217.32 = 4,850,456.77/x
  3. Step 3: Cross multiply
    8,472,828.61x = 11,692,217.32 × 4,850,456.77
  4. Step 4: Simplify right side
    8,472,828.61x = 56,712,594,656,105.25
  5. Step 5: Solve for x
    x = 56,712,594,656,105.25/8,472,828.61
  6. Step 6: Final answer
    x = 6,693,466.52

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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.