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Finding the Fourth Proportional to 26,721.65, 40,083.76 and 7,000.22

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Solution

The fourth proportional to 26,721.65, 40,083.76 and 7,000.22 is: 10,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,721.65 : 40,083.76 = 7,000.22 : x
  2. Step 2: Convert to fraction form
    26,721.65/40,083.76 = 7,000.22/x
  3. Step 3: Cross multiply
    26,721.65x = 40,083.76 × 7,000.22
  4. Step 4: Simplify right side
    26,721.65x = 280,595,247.39
  5. Step 5: Solve for x
    x = 280,595,247.39/26,721.65
  6. Step 6: Final answer
    x = 10,500.67

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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.