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Finding the Fourth Proportional to 61,645.98, 85,071.12 and 33,351.60

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Solution

The fourth proportional to 61,645.98, 85,071.12 and 33,351.60 is: 46,025.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.98 : 85,071.12 = 33,351.60 : x
  2. Step 2: Convert to fraction form
    61,645.98/85,071.12 = 33,351.60/x
  3. Step 3: Cross multiply
    61,645.98x = 85,071.12 × 33,351.60
  4. Step 4: Simplify right side
    61,645.98x = 2,837,257,965.79
  5. Step 5: Solve for x
    x = 2,837,257,965.79/61,645.98
  6. Step 6: Final answer
    x = 46,025.03

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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.