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Finding the Fourth Proportional to 10,644.64, 15,967.13 and 3,528.90

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Solution

The fourth proportional to 10,644.64, 15,967.13 and 3,528.90 is: 5,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.64 : 15,967.13 = 3,528.90 : x
  2. Step 2: Convert to fraction form
    10,644.64/15,967.13 = 3,528.90/x
  3. Step 3: Cross multiply
    10,644.64x = 15,967.13 × 3,528.90
  4. Step 4: Simplify right side
    10,644.64x = 56,346,405.06
  5. Step 5: Solve for x
    x = 56,346,405.06/10,644.64
  6. Step 6: Final answer
    x = 5,293.41

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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.