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Finding the Fourth Proportional to 61,886.40, 85,404.22 and 33,592.08

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Solution

The fourth proportional to 61,886.40, 85,404.22 and 33,592.08 is: 46,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.40 : 85,404.22 = 33,592.08 : x
  2. Step 2: Convert to fraction form
    61,886.40/85,404.22 = 33,592.08/x
  3. Step 3: Cross multiply
    61,886.40x = 85,404.22 × 33,592.08
  4. Step 4: Simplify right side
    61,886.40x = 2,868,905,390.58
  5. Step 5: Solve for x
    x = 2,868,905,390.58/61,886.40
  6. Step 6: Final answer
    x = 46,357.61

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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.