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Finding the Fourth Proportional to 12,040.64, 16,615.68 and 6,736.08

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Solution

The fourth proportional to 12,040.64, 16,615.68 and 6,736.08 is: 9,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.64 : 16,615.68 = 6,736.08 : x
  2. Step 2: Convert to fraction form
    12,040.64/16,615.68 = 6,736.08/x
  3. Step 3: Cross multiply
    12,040.64x = 16,615.68 × 6,736.08
  4. Step 4: Simplify right side
    12,040.64x = 111,924,549.73
  5. Step 5: Solve for x
    x = 111,924,549.73/12,040.64
  6. Step 6: Final answer
    x = 9,295.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.