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Finding the Fourth Proportional to 61,127.64, 84,364.79 and 33,909.83

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Solution

The fourth proportional to 61,127.64, 84,364.79 and 33,909.83 is: 46,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,127.64 : 84,364.79 = 33,909.83 : x
  2. Step 2: Convert to fraction form
    61,127.64/84,364.79 = 33,909.83/x
  3. Step 3: Cross multiply
    61,127.64x = 84,364.79 × 33,909.83
  4. Step 4: Simplify right side
    61,127.64x = 2,860,795,095.51
  5. Step 5: Solve for x
    x = 2,860,795,095.51/61,127.64
  6. Step 6: Final answer
    x = 46,800.35

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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.