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Finding the Fourth Proportional to 4,872.66, 6,692.86 and 4,779.27

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Solution

The fourth proportional to 4,872.66, 6,692.86 and 4,779.27 is: 6,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.66 : 6,692.86 = 4,779.27 : x
  2. Step 2: Convert to fraction form
    4,872.66/6,692.86 = 4,779.27/x
  3. Step 3: Cross multiply
    4,872.66x = 6,692.86 × 4,779.27
  4. Step 4: Simplify right side
    4,872.66x = 31,986,985.01
  5. Step 5: Solve for x
    x = 31,986,985.01/4,872.66
  6. Step 6: Final answer
    x = 6,564.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.