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Finding the Fourth Proportional to 33,387.72, 50,076.72 and 12,038.28

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Solution

The fourth proportional to 33,387.72, 50,076.72 and 12,038.28 is: 18,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,387.72 : 50,076.72 = 12,038.28 : x
  2. Step 2: Convert to fraction form
    33,387.72/50,076.72 = 12,038.28/x
  3. Step 3: Cross multiply
    33,387.72x = 50,076.72 × 12,038.28
  4. Step 4: Simplify right side
    33,387.72x = 602,837,576.84
  5. Step 5: Solve for x
    x = 602,837,576.84/33,387.72
  6. Step 6: Final answer
    x = 18,055.67

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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.