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Finding the Fourth Proportional to 65,352.21, 98,019.03 and 20,973.21

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Solution

The fourth proportional to 65,352.21, 98,019.03 and 20,973.21 is: 31,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,352.21 : 98,019.03 = 20,973.21 : x
  2. Step 2: Convert to fraction form
    65,352.21/98,019.03 = 20,973.21/x
  3. Step 3: Cross multiply
    65,352.21x = 98,019.03 × 20,973.21
  4. Step 4: Simplify right side
    65,352.21x = 2,055,773,700.19
  5. Step 5: Solve for x
    x = 2,055,773,700.19/65,352.21
  6. Step 6: Final answer
    x = 31,456.84

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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.