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Finding the Fourth Proportional to 75,028.16, 112,540.08 and 19,624.16

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Solution

The fourth proportional to 75,028.16, 112,540.08 and 19,624.16 is: 29,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,028.16 : 112,540.08 = 19,624.16 : x
  2. Step 2: Convert to fraction form
    75,028.16/112,540.08 = 19,624.16/x
  3. Step 3: Cross multiply
    75,028.16x = 112,540.08 × 19,624.16
  4. Step 4: Simplify right side
    75,028.16x = 2,208,504,536.33
  5. Step 5: Solve for x
    x = 2,208,504,536.33/75,028.16
  6. Step 6: Final answer
    x = 29,435.68

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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.