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Finding the Fourth Proportional to 28,797.44, 39,738.80 and 16,050.20

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Solution

The fourth proportional to 28,797.44, 39,738.80 and 16,050.20 is: 22,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797.44 : 39,738.80 = 16,050.20 : x
  2. Step 2: Convert to fraction form
    28,797.44/39,738.80 = 16,050.20/x
  3. Step 3: Cross multiply
    28,797.44x = 39,738.80 × 16,050.20
  4. Step 4: Simplify right side
    28,797.44x = 637,815,529.19
  5. Step 5: Solve for x
    x = 637,815,529.19/28,797.44
  6. Step 6: Final answer
    x = 22,148.35

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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.