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Finding the Fourth Proportional to 27,285.21, 40,927.64 and 7,021.94

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Solution

The fourth proportional to 27,285.21, 40,927.64 and 7,021.94 is: 10,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.21 : 40,927.64 = 7,021.94 : x
  2. Step 2: Convert to fraction form
    27,285.21/40,927.64 = 7,021.94/x
  3. Step 3: Cross multiply
    27,285.21x = 40,927.64 × 7,021.94
  4. Step 4: Simplify right side
    27,285.21x = 287,391,192.67
  5. Step 5: Solve for x
    x = 287,391,192.67/27,285.21
  6. Step 6: Final answer
    x = 10,532.86

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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.