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Finding the Fourth Proportional to 12,341.76, 18,512.72 and 3,576.64

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Solution

The fourth proportional to 12,341.76, 18,512.72 and 3,576.64 is: 5,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.76 : 18,512.72 = 3,576.64 : x
  2. Step 2: Convert to fraction form
    12,341.76/18,512.72 = 3,576.64/x
  3. Step 3: Cross multiply
    12,341.76x = 18,512.72 × 3,576.64
  4. Step 4: Simplify right side
    12,341.76x = 66,213,334.86
  5. Step 5: Solve for x
    x = 66,213,334.86/12,341.76
  6. Step 6: Final answer
    x = 5,364.98

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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.