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Finding the Fourth Proportional to 61,970.40, 85,518.94 and 33,676.08

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Solution

The fourth proportional to 61,970.40, 85,518.94 and 33,676.08 is: 46,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,970.40 : 85,518.94 = 33,676.08 : x
  2. Step 2: Convert to fraction form
    61,970.40/85,518.94 = 33,676.08/x
  3. Step 3: Cross multiply
    61,970.40x = 85,518.94 × 33,676.08
  4. Step 4: Simplify right side
    61,970.40x = 2,879,942,664.96
  5. Step 5: Solve for x
    x = 2,879,942,664.96/61,970.40
  6. Step 6: Final answer
    x = 46,472.88

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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.