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Finding the Fourth Proportional to 61,620.60, 85,036.43 and 33,326.29

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Solution

The fourth proportional to 61,620.60, 85,036.43 and 33,326.29 is: 45,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,620.60 : 85,036.43 = 33,326.29 : x
  2. Step 2: Convert to fraction form
    61,620.60/85,036.43 = 33,326.29/x
  3. Step 3: Cross multiply
    61,620.60x = 85,036.43 × 33,326.29
  4. Step 4: Simplify right side
    61,620.60x = 2,833,948,163.84
  5. Step 5: Solve for x
    x = 2,833,948,163.84/61,620.60
  6. Step 6: Final answer
    x = 45,990.27

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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.