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Finding the Fourth Proportional to 28,594.17, 42,889.20 and 8,872.22

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Solution

The fourth proportional to 28,594.17, 42,889.20 and 8,872.22 is: 13,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,594.17 : 42,889.20 = 8,872.22 : x
  2. Step 2: Convert to fraction form
    28,594.17/42,889.20 = 8,872.22/x
  3. Step 3: Cross multiply
    28,594.17x = 42,889.20 × 8,872.22
  4. Step 4: Simplify right side
    28,594.17x = 380,522,418.02
  5. Step 5: Solve for x
    x = 380,522,418.02/28,594.17
  6. Step 6: Final answer
    x = 13,307.69

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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.