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Finding the Fourth Proportional to 61,443.82, 84,792.65 and 34,586.74

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Solution

The fourth proportional to 61,443.82, 84,792.65 and 34,586.74 is: 47,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,443.82 : 84,792.65 = 34,586.74 : x
  2. Step 2: Convert to fraction form
    61,443.82/84,792.65 = 34,586.74/x
  3. Step 3: Cross multiply
    61,443.82x = 84,792.65 × 34,586.74
  4. Step 4: Simplify right side
    61,443.82x = 2,932,701,339.46
  5. Step 5: Solve for x
    x = 2,932,701,339.46/61,443.82
  6. Step 6: Final answer
    x = 47,729.80

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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.