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Finding the Fourth Proportional to 85,396.01, 128,104.94 and 32,798.66

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Solution

The fourth proportional to 85,396.01, 128,104.94 and 32,798.66 is: 49,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,396.01 : 128,104.94 = 32,798.66 : x
  2. Step 2: Convert to fraction form
    85,396.01/128,104.94 = 32,798.66/x
  3. Step 3: Cross multiply
    85,396.01x = 128,104.94 × 32,798.66
  4. Step 4: Simplify right side
    85,396.01x = 4,201,669,812.85
  5. Step 5: Solve for x
    x = 4,201,669,812.85/85,396.01
  6. Step 6: Final answer
    x = 49,202.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.