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Finding the Fourth Proportional to 28,461.62, 39,274.05 and 16,522.62

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Solution

The fourth proportional to 28,461.62, 39,274.05 and 16,522.62 is: 22,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.62 : 39,274.05 = 16,522.62 : x
  2. Step 2: Convert to fraction form
    28,461.62/39,274.05 = 16,522.62/x
  3. Step 3: Cross multiply
    28,461.62x = 39,274.05 × 16,522.62
  4. Step 4: Simplify right side
    28,461.62x = 648,910,302.20
  5. Step 5: Solve for x
    x = 648,910,302.20/28,461.62
  6. Step 6: Final answer
    x = 22,799.49

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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.