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Finding the Fourth Proportional to 58,493.21, 80,720.40 and 32,999.58

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Solution

The fourth proportional to 58,493.21, 80,720.40 and 32,999.58 is: 45,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,493.21 : 80,720.40 = 32,999.58 : x
  2. Step 2: Convert to fraction form
    58,493.21/80,720.40 = 32,999.58/x
  3. Step 3: Cross multiply
    58,493.21x = 80,720.40 × 32,999.58
  4. Step 4: Simplify right side
    58,493.21x = 2,663,739,297.43
  5. Step 5: Solve for x
    x = 2,663,739,297.43/58,493.21
  6. Step 6: Final answer
    x = 45,539.29

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1.5x scale

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.