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Finding the Fourth Proportional to 15,958.80, 22,023.12 and 8,885.84

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Solution

The fourth proportional to 15,958.80, 22,023.12 and 8,885.84 is: 12,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.80 : 22,023.12 = 8,885.84 : x
  2. Step 2: Convert to fraction form
    15,958.80/22,023.12 = 8,885.84/x
  3. Step 3: Cross multiply
    15,958.80x = 22,023.12 × 8,885.84
  4. Step 4: Simplify right side
    15,958.80x = 195,693,920.62
  5. Step 5: Solve for x
    x = 195,693,920.62/15,958.80
  6. Step 6: Final answer
    x = 12,262.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.