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Finding the Fourth Proportional to 6,211.54, 8,570.22 and 4,321.00

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Solution

The fourth proportional to 6,211.54, 8,570.22 and 4,321.00 is: 5,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.54 : 8,570.22 = 4,321.00 : x
  2. Step 2: Convert to fraction form
    6,211.54/8,570.22 = 4,321.00/x
  3. Step 3: Cross multiply
    6,211.54x = 8,570.22 × 4,321.00
  4. Step 4: Simplify right side
    6,211.54x = 37,031,877.77
  5. Step 5: Solve for x
    x = 37,031,877.77/6,211.54
  6. Step 6: Final answer
    x = 5,961.79

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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.