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Finding the Fourth Proportional to 61,808.64, 85,295.10 and 33,513.72

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Solution

The fourth proportional to 61,808.64, 85,295.10 and 33,513.72 is: 46,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.64 : 85,295.10 = 33,513.72 : x
  2. Step 2: Convert to fraction form
    61,808.64/85,295.10 = 33,513.72/x
  3. Step 3: Cross multiply
    61,808.64x = 85,295.10 × 33,513.72
  4. Step 4: Simplify right side
    61,808.64x = 2,858,556,098.77
  5. Step 5: Solve for x
    x = 2,858,556,098.77/61,808.64
  6. Step 6: Final answer
    x = 46,248.49

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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.