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Finding the Fourth Proportional to 65,598.63, 98,412.27 and 21,229.87

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Solution

The fourth proportional to 65,598.63, 98,412.27 and 21,229.87 is: 31,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,598.63 : 98,412.27 = 21,229.87 : x
  2. Step 2: Convert to fraction form
    65,598.63/98,412.27 = 21,229.87/x
  3. Step 3: Cross multiply
    65,598.63x = 98,412.27 × 21,229.87
  4. Step 4: Simplify right side
    65,598.63x = 2,089,279,698.50
  5. Step 5: Solve for x
    x = 2,089,279,698.50/65,598.63
  6. Step 6: Final answer
    x = 31,849.44

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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.