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Finding the Fourth Proportional to 53,991.99, 80,994.82 and 18,460.12

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Solution

The fourth proportional to 53,991.99, 80,994.82 and 18,460.12 is: 27,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,991.99 : 80,994.82 = 18,460.12 : x
  2. Step 2: Convert to fraction form
    53,991.99/80,994.82 = 18,460.12/x
  3. Step 3: Cross multiply
    53,991.99x = 80,994.82 × 18,460.12
  4. Step 4: Simplify right side
    53,991.99x = 1,495,174,096.58
  5. Step 5: Solve for x
    x = 1,495,174,096.58/53,991.99
  6. Step 6: Final answer
    x = 27,692.52

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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.