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Finding the Fourth Proportional to 74,120, 111,087.84 and 32,525.12

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Solution

The fourth proportional to 74,120, 111,087.84 and 32,525.12 is: 48,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120 : 111,087.84 = 32,525.12 : x
  2. Step 2: Convert to fraction form
    74,120/111,087.84 = 32,525.12/x
  3. Step 3: Cross multiply
    74,120x = 111,087.84 × 32,525.12
  4. Step 4: Simplify right side
    74,120x = 3,613,145,326.54
  5. Step 5: Solve for x
    x = 3,613,145,326.54/74,120
  6. Step 6: Final answer
    x = 48,747.24

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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.