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Finding the Fourth Proportional to 61,611.64, 85,023.66 and 33,317.20

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Solution

The fourth proportional to 61,611.64, 85,023.66 and 33,317.20 is: 45,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,611.64 : 85,023.66 = 33,317.20 : x
  2. Step 2: Convert to fraction form
    61,611.64/85,023.66 = 33,317.20/x
  3. Step 3: Cross multiply
    61,611.64x = 85,023.66 × 33,317.20
  4. Step 4: Simplify right side
    61,611.64x = 2,832,750,284.95
  5. Step 5: Solve for x
    x = 2,832,750,284.95/61,611.64
  6. Step 6: Final answer
    x = 45,977.52

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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.