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Finding the Fourth Proportional to 13,955.49, 20,951.00 and 9,045.67

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Solution

The fourth proportional to 13,955.49, 20,951.00 and 9,045.67 is: 13,580.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.49 : 20,951.00 = 9,045.67 : x
  2. Step 2: Convert to fraction form
    13,955.49/20,951.00 = 9,045.67/x
  3. Step 3: Cross multiply
    13,955.49x = 20,951.00 × 9,045.67
  4. Step 4: Simplify right side
    13,955.49x = 189,515,786.94
  5. Step 5: Solve for x
    x = 189,515,786.94/13,955.49
  6. Step 6: Final answer
    x = 13,580.02

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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.