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Finding the Fourth Proportional to 64,305.60, 96,458.40 and 17,563.20

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Solution

The fourth proportional to 64,305.60, 96,458.40 and 17,563.20 is: 26,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,305.60 : 96,458.40 = 17,563.20 : x
  2. Step 2: Convert to fraction form
    64,305.60/96,458.40 = 17,563.20/x
  3. Step 3: Cross multiply
    64,305.60x = 96,458.40 × 17,563.20
  4. Step 4: Simplify right side
    64,305.60x = 1,694,118,170.88
  5. Step 5: Solve for x
    x = 1,694,118,170.88/64,305.60
  6. Step 6: Final answer
    x = 26,344.80

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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.