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Finding the Fourth Proportional to 65,148.88, 97,712.88 and 18,405.04

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Solution

The fourth proportional to 65,148.88, 97,712.88 and 18,405.04 is: 27,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,148.88 : 97,712.88 = 18,405.04 : x
  2. Step 2: Convert to fraction form
    65,148.88/97,712.88 = 18,405.04/x
  3. Step 3: Cross multiply
    65,148.88x = 97,712.88 × 18,405.04
  4. Step 4: Simplify right side
    65,148.88x = 1,798,409,464.92
  5. Step 5: Solve for x
    x = 1,798,409,464.92/65,148.88
  6. Step 6: Final answer
    x = 27,604.61

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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.