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Finding the Fourth Proportional to 65,607.22, 98,410.02 and 21,232.99

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Solution

The fourth proportional to 65,607.22, 98,410.02 and 21,232.99 is: 31,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,607.22 : 98,410.02 = 21,232.99 : x
  2. Step 2: Convert to fraction form
    65,607.22/98,410.02 = 21,232.99/x
  3. Step 3: Cross multiply
    65,607.22x = 98,410.02 × 21,232.99
  4. Step 4: Simplify right side
    65,607.22x = 2,089,538,970.56
  5. Step 5: Solve for x
    x = 2,089,538,970.56/65,607.22
  6. Step 6: Final answer
    x = 31,849.22

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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.