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Finding the Fourth Proportional to 64,630.66, 96,945.99 and 20,260.84

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Solution

The fourth proportional to 64,630.66, 96,945.99 and 20,260.84 is: 30,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,630.66 : 96,945.99 = 20,260.84 : x
  2. Step 2: Convert to fraction form
    64,630.66/96,945.99 = 20,260.84/x
  3. Step 3: Cross multiply
    64,630.66x = 96,945.99 × 20,260.84
  4. Step 4: Simplify right side
    64,630.66x = 1,964,207,192.03
  5. Step 5: Solve for x
    x = 1,964,207,192.03/64,630.66
  6. Step 6: Final answer
    x = 30,391.26

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Similar ratio
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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.