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Finding the Fourth Proportional to 28,241.60, 38,969.00 and 16,302.63

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Solution

The fourth proportional to 28,241.60, 38,969.00 and 16,302.63 is: 22,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.60 : 38,969.00 = 16,302.63 : x
  2. Step 2: Convert to fraction form
    28,241.60/38,969.00 = 16,302.63/x
  3. Step 3: Cross multiply
    28,241.60x = 38,969.00 × 16,302.63
  4. Step 4: Simplify right side
    28,241.60x = 635,297,314.23
  5. Step 5: Solve for x
    x = 635,297,314.23/28,241.60
  6. Step 6: Final answer
    x = 22,495.09

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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.