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Finding the Fourth Proportional to 61,686.89, 92,486.52 and 26,636.57

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Solution

The fourth proportional to 61,686.89, 92,486.52 and 26,636.57 is: 39,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,686.89 : 92,486.52 = 26,636.57 : x
  2. Step 2: Convert to fraction form
    61,686.89/92,486.52 = 26,636.57/x
  3. Step 3: Cross multiply
    61,686.89x = 92,486.52 × 26,636.57
  4. Step 4: Simplify right side
    61,686.89x = 2,463,523,664.04
  5. Step 5: Solve for x
    x = 2,463,523,664.04/61,686.89
  6. Step 6: Final answer
    x = 39,935.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.