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Finding the Fourth Proportional to 61,996.50, 92,994.80 and 20,443.50

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Solution

The fourth proportional to 61,996.50, 92,994.80 and 20,443.50 is: 30,665.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,996.50 : 92,994.80 = 20,443.50 : x
  2. Step 2: Convert to fraction form
    61,996.50/92,994.80 = 20,443.50/x
  3. Step 3: Cross multiply
    61,996.50x = 92,994.80 × 20,443.50
  4. Step 4: Simplify right side
    61,996.50x = 1,901,139,091.58
  5. Step 5: Solve for x
    x = 1,901,139,091.58/61,996.50
  6. Step 6: Final answer
    x = 30,665.26

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1.5x scale

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.