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Finding the Fourth Proportional to 65,172.48, 97,734.40 and 25,716.48

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Solution

The fourth proportional to 65,172.48, 97,734.40 and 25,716.48 is: 38,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,172.48 : 97,734.40 = 25,716.48 : x
  2. Step 2: Convert to fraction form
    65,172.48/97,734.40 = 25,716.48/x
  3. Step 3: Cross multiply
    65,172.48x = 97,734.40 × 25,716.48
  4. Step 4: Simplify right side
    65,172.48x = 2,513,384,742.91
  5. Step 5: Solve for x
    x = 2,513,384,742.91/65,172.48
  6. Step 6: Final answer
    x = 38,565.12

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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.