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Finding the Fourth Proportional to 74,910.80, 112,380.78 and 22,319.12

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Solution

The fourth proportional to 74,910.80, 112,380.78 and 22,319.12 is: 33,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.80 : 112,380.78 = 22,319.12 : x
  2. Step 2: Convert to fraction form
    74,910.80/112,380.78 = 22,319.12/x
  3. Step 3: Cross multiply
    74,910.80x = 112,380.78 × 22,319.12
  4. Step 4: Simplify right side
    74,910.80x = 2,508,240,114.51
  5. Step 5: Solve for x
    x = 2,508,240,114.51/74,910.80
  6. Step 6: Final answer
    x = 33,483.02

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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.