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Finding the Fourth Proportional to 64,960.80, 97,441.20 and 25,504.80

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Solution

The fourth proportional to 64,960.80, 97,441.20 and 25,504.80 is: 38,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,960.80 : 97,441.20 = 25,504.80 : x
  2. Step 2: Convert to fraction form
    64,960.80/97,441.20 = 25,504.80/x
  3. Step 3: Cross multiply
    64,960.80x = 97,441.20 × 25,504.80
  4. Step 4: Simplify right side
    64,960.80x = 2,485,218,317.76
  5. Step 5: Solve for x
    x = 2,485,218,317.76/64,960.80
  6. Step 6: Final answer
    x = 38,257.20

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1.5x scale

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.