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Finding the Fourth Proportional to 57,765.56, 86,630.70 and 24,485

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Solution

The fourth proportional to 57,765.56, 86,630.70 and 24,485 is: 36,720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.56 : 86,630.70 = 24,485 : x
  2. Step 2: Convert to fraction form
    57,765.56/86,630.70 = 24,485/x
  3. Step 3: Cross multiply
    57,765.56x = 86,630.70 × 24,485
  4. Step 4: Simplify right side
    57,765.56x = 2,121,152,689.50
  5. Step 5: Solve for x
    x = 2,121,152,689.50/57,765.56
  6. Step 6: Final answer
    x = 36,720.02

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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.