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Finding the Fourth Proportional to 61,555.64, 84,946.84 and 33,261.40

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Solution

The fourth proportional to 61,555.64, 84,946.84 and 33,261.40 is: 45,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,555.64 : 84,946.84 = 33,261.40 : x
  2. Step 2: Convert to fraction form
    61,555.64/84,946.84 = 33,261.40/x
  3. Step 3: Cross multiply
    61,555.64x = 84,946.84 × 33,261.40
  4. Step 4: Simplify right side
    61,555.64x = 2,825,450,823.98
  5. Step 5: Solve for x
    x = 2,825,450,823.98/61,555.64
  6. Step 6: Final answer
    x = 45,900.76

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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.