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Finding the Fourth Proportional to 66,008.72, 91,091 and 35,793.44

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Solution

The fourth proportional to 66,008.72, 91,091 and 35,793.44 is: 49,394.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,008.72 : 91,091 = 35,793.44 : x
  2. Step 2: Convert to fraction form
    66,008.72/91,091 = 35,793.44/x
  3. Step 3: Cross multiply
    66,008.72x = 91,091 × 35,793.44
  4. Step 4: Simplify right side
    66,008.72x = 3,260,460,243.04
  5. Step 5: Solve for x
    x = 3,260,460,243.04/66,008.72
  6. Step 6: Final answer
    x = 49,394.39

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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.