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Finding the Fourth Proportional to 13,644.66, 18,748.02 and 10,845.30

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Solution

The fourth proportional to 13,644.66, 18,748.02 and 10,845.30 is: 14,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.66 : 18,748.02 = 10,845.30 : x
  2. Step 2: Convert to fraction form
    13,644.66/18,748.02 = 10,845.30/x
  3. Step 3: Cross multiply
    13,644.66x = 18,748.02 × 10,845.30
  4. Step 4: Simplify right side
    13,644.66x = 203,327,901.31
  5. Step 5: Solve for x
    x = 203,327,901.31/13,644.66
  6. Step 6: Final answer
    x = 14,901.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.