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Finding the Fourth Proportional to 10,955.70, 16,441.65 and 7,256.70

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Solution

The fourth proportional to 10,955.70, 16,441.65 and 7,256.70 is: 10,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.70 : 16,441.65 = 7,256.70 : x
  2. Step 2: Convert to fraction form
    10,955.70/16,441.65 = 7,256.70/x
  3. Step 3: Cross multiply
    10,955.70x = 16,441.65 × 7,256.70
  4. Step 4: Simplify right side
    10,955.70x = 119,312,121.56
  5. Step 5: Solve for x
    x = 119,312,121.56/10,955.70
  6. Step 6: Final answer
    x = 10,890.42

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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.