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Finding the Fourth Proportional to 26,573.85, 39,865.07 and 7,855.76

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Solution

The fourth proportional to 26,573.85, 39,865.07 and 7,855.76 is: 11,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,573.85 : 39,865.07 = 7,855.76 : x
  2. Step 2: Convert to fraction form
    26,573.85/39,865.07 = 7,855.76/x
  3. Step 3: Cross multiply
    26,573.85x = 39,865.07 × 7,855.76
  4. Step 4: Simplify right side
    26,573.85x = 313,170,541.61
  5. Step 5: Solve for x
    x = 313,170,541.61/26,573.85
  6. Step 6: Final answer
    x = 11,784.91

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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.