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Finding the Fourth Proportional to 5,461.21, 8,208.22 and 4,805.11

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Solution

The fourth proportional to 5,461.21, 8,208.22 and 4,805.11 is: 7,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.21 : 8,208.22 = 4,805.11 : x
  2. Step 2: Convert to fraction form
    5,461.21/8,208.22 = 4,805.11/x
  3. Step 3: Cross multiply
    5,461.21x = 8,208.22 × 4,805.11
  4. Step 4: Simplify right side
    5,461.21x = 39,441,400.00
  5. Step 5: Solve for x
    x = 39,441,400.00/5,461.21
  6. Step 6: Final answer
    x = 7,222.10

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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.