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Finding the Fourth Proportional to 10,969.70, 16,458.60 and 10,564.70

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Solution

The fourth proportional to 10,969.70, 16,458.60 and 10,564.70 is: 15,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.70 : 16,458.60 = 10,564.70 : x
  2. Step 2: Convert to fraction form
    10,969.70/16,458.60 = 10,564.70/x
  3. Step 3: Cross multiply
    10,969.70x = 16,458.60 × 10,564.70
  4. Step 4: Simplify right side
    10,969.70x = 173,880,171.42
  5. Step 5: Solve for x
    x = 173,880,171.42/10,969.70
  6. Step 6: Final answer
    x = 15,850.95

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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.