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Finding the Fourth Proportional to 6,255.90, 8,640.23 and 4,263

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Solution

The fourth proportional to 6,255.90, 8,640.23 and 4,263 is: 5,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.90 : 8,640.23 = 4,263 : x
  2. Step 2: Convert to fraction form
    6,255.90/8,640.23 = 4,263/x
  3. Step 3: Cross multiply
    6,255.90x = 8,640.23 × 4,263
  4. Step 4: Simplify right side
    6,255.90x = 36,833,300.49
  5. Step 5: Solve for x
    x = 36,833,300.49/6,255.90
  6. Step 6: Final answer
    x = 5,887.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.