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Finding the Fourth Proportional to 61,398.98, 84,740.95 and 35,553.77

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Solution

The fourth proportional to 61,398.98, 84,740.95 and 35,553.77 is: 49,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.98 : 84,740.95 = 35,553.77 : x
  2. Step 2: Convert to fraction form
    61,398.98/84,740.95 = 35,553.77/x
  3. Step 3: Cross multiply
    61,398.98x = 84,740.95 × 35,553.77
  4. Step 4: Simplify right side
    61,398.98x = 3,012,860,245.88
  5. Step 5: Solve for x
    x = 3,012,860,245.88/61,398.98
  6. Step 6: Final answer
    x = 49,070.20

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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.