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Finding the Fourth Proportional to 28,600.40, 39,467.88 and 16,024.88

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Solution

The fourth proportional to 28,600.40, 39,467.88 and 16,024.88 is: 22,113.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.40 : 39,467.88 = 16,024.88 : x
  2. Step 2: Convert to fraction form
    28,600.40/39,467.88 = 16,024.88/x
  3. Step 3: Cross multiply
    28,600.40x = 39,467.88 × 16,024.88
  4. Step 4: Simplify right side
    28,600.40x = 632,468,040.85
  5. Step 5: Solve for x
    x = 632,468,040.85/28,600.40
  6. Step 6: Final answer
    x = 22,113.96

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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.