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Finding the Fourth Proportional to 29,909.70, 44,864.55 and 20,967.30

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Solution

The fourth proportional to 29,909.70, 44,864.55 and 20,967.30 is: 31,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,909.70 : 44,864.55 = 20,967.30 : x
  2. Step 2: Convert to fraction form
    29,909.70/44,864.55 = 20,967.30/x
  3. Step 3: Cross multiply
    29,909.70x = 44,864.55 × 20,967.30
  4. Step 4: Simplify right side
    29,909.70x = 940,688,479.22
  5. Step 5: Solve for x
    x = 940,688,479.22/29,909.70
  6. Step 6: Final answer
    x = 31,450.95

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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.