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Finding the Fourth Proportional to 74,679.86, 112,020.20 and 22,089.80

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Solution

The fourth proportional to 74,679.86, 112,020.20 and 22,089.80 is: 33,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.86 : 112,020.20 = 22,089.80 : x
  2. Step 2: Convert to fraction form
    74,679.86/112,020.20 = 22,089.80/x
  3. Step 3: Cross multiply
    74,679.86x = 112,020.20 × 22,089.80
  4. Step 4: Simplify right side
    74,679.86x = 2,474,503,703.51
  5. Step 5: Solve for x
    x = 2,474,503,703.51/74,679.86
  6. Step 6: Final answer
    x = 33,134.82

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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.