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Finding the Fourth Proportional to 25,996.72, 38,995.06 and 8,466.54

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Solution

The fourth proportional to 25,996.72, 38,995.06 and 8,466.54 is: 12,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,996.72 : 38,995.06 = 8,466.54 : x
  2. Step 2: Convert to fraction form
    25,996.72/38,995.06 = 8,466.54/x
  3. Step 3: Cross multiply
    25,996.72x = 38,995.06 × 8,466.54
  4. Step 4: Simplify right side
    25,996.72x = 330,153,235.29
  5. Step 5: Solve for x
    x = 330,153,235.29/25,996.72
  6. Step 6: Final answer
    x = 12,699.80

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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.