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Finding the Fourth Proportional to 64,624.92, 96,937.53 and 20,255.55

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Solution

The fourth proportional to 64,624.92, 96,937.53 and 20,255.55 is: 30,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,624.92 : 96,937.53 = 20,255.55 : x
  2. Step 2: Convert to fraction form
    64,624.92/96,937.53 = 20,255.55/x
  3. Step 3: Cross multiply
    64,624.92x = 96,937.53 × 20,255.55
  4. Step 4: Simplify right side
    64,624.92x = 1,963,522,985.79
  5. Step 5: Solve for x
    x = 1,963,522,985.79/64,624.92
  6. Step 6: Final answer
    x = 30,383.37

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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.