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Finding the Fourth Proportional to 4,692.86, 6,479.16 and 3,015

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Solution

The fourth proportional to 4,692.86, 6,479.16 and 3,015 is: 4,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.86 : 6,479.16 = 3,015 : x
  2. Step 2: Convert to fraction form
    4,692.86/6,479.16 = 3,015/x
  3. Step 3: Cross multiply
    4,692.86x = 6,479.16 × 3,015
  4. Step 4: Simplify right side
    4,692.86x = 19,534,667.40
  5. Step 5: Solve for x
    x = 19,534,667.40/4,692.86
  6. Step 6: Final answer
    x = 4,162.64

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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.