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Finding the Fourth Proportional to 75,028.80, 112,555.80 and 22,443.60

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Solution

The fourth proportional to 75,028.80, 112,555.80 and 22,443.60 is: 33,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,028.80 : 112,555.80 = 22,443.60 : x
  2. Step 2: Convert to fraction form
    75,028.80/112,555.80 = 22,443.60/x
  3. Step 3: Cross multiply
    75,028.80x = 112,555.80 × 22,443.60
  4. Step 4: Simplify right side
    75,028.80x = 2,526,157,352.88
  5. Step 5: Solve for x
    x = 2,526,157,352.88/75,028.80
  6. Step 6: Final answer
    x = 33,669.17

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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.