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Finding the Fourth Proportional to 65,238.80, 97,862.04 and 20,862.09

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Solution

The fourth proportional to 65,238.80, 97,862.04 and 20,862.09 is: 31,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,238.80 : 97,862.04 = 20,862.09 : x
  2. Step 2: Convert to fraction form
    65,238.80/97,862.04 = 20,862.09/x
  3. Step 3: Cross multiply
    65,238.80x = 97,862.04 × 20,862.09
  4. Step 4: Simplify right side
    65,238.80x = 2,041,606,686.06
  5. Step 5: Solve for x
    x = 2,041,606,686.06/65,238.80
  6. Step 6: Final answer
    x = 31,294.37

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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.