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Finding the Fourth Proportional to 61,499.70, 84,877.61 and 34,647.39

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Solution

The fourth proportional to 61,499.70, 84,877.61 and 34,647.39 is: 47,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,499.70 : 84,877.61 = 34,647.39 : x
  2. Step 2: Convert to fraction form
    61,499.70/84,877.61 = 34,647.39/x
  3. Step 3: Cross multiply
    61,499.70x = 84,877.61 × 34,647.39
  4. Step 4: Simplify right side
    61,499.70x = 2,940,787,482.70
  5. Step 5: Solve for x
    x = 2,940,787,482.70/61,499.70
  6. Step 6: Final answer
    x = 47,817.92

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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.