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Finding the Fourth Proportional to 65,317.72, 97,993.03 and 18,570.60

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Solution

The fourth proportional to 65,317.72, 97,993.03 and 18,570.60 is: 27,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,317.72 : 97,993.03 = 18,570.60 : x
  2. Step 2: Convert to fraction form
    65,317.72/97,993.03 = 18,570.60/x
  3. Step 3: Cross multiply
    65,317.72x = 97,993.03 × 18,570.60
  4. Step 4: Simplify right side
    65,317.72x = 1,819,788,872.95
  5. Step 5: Solve for x
    x = 1,819,788,872.95/65,317.72
  6. Step 6: Final answer
    x = 27,860.57

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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.