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Finding the Fourth Proportional to 26,622.24, 39,929.91 and 7,901.90

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Solution

The fourth proportional to 26,622.24, 39,929.91 and 7,901.90 is: 11,851.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,622.24 : 39,929.91 = 7,901.90 : x
  2. Step 2: Convert to fraction form
    26,622.24/39,929.91 = 7,901.90/x
  3. Step 3: Cross multiply
    26,622.24x = 39,929.91 × 7,901.90
  4. Step 4: Simplify right side
    26,622.24x = 315,522,345.34
  5. Step 5: Solve for x
    x = 315,522,345.34/26,622.24
  6. Step 6: Final answer
    x = 11,851.83

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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.