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Finding the Fourth Proportional to 7,069.92, 10,605.60 and 1,876.32

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Solution

The fourth proportional to 7,069.92, 10,605.60 and 1,876.32 is: 2,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.92 : 10,605.60 = 1,876.32 : x
  2. Step 2: Convert to fraction form
    7,069.92/10,605.60 = 1,876.32/x
  3. Step 3: Cross multiply
    7,069.92x = 10,605.60 × 1,876.32
  4. Step 4: Simplify right side
    7,069.92x = 19,899,499.39
  5. Step 5: Solve for x
    x = 19,899,499.39/7,069.92
  6. Step 6: Final answer
    x = 2,814.67

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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.