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Finding the Fourth Proportional to 8,745.98, 12,069.70 and 4,767.35

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Solution

The fourth proportional to 8,745.98, 12,069.70 and 4,767.35 is: 6,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.98 : 12,069.70 = 4,767.35 : x
  2. Step 2: Convert to fraction form
    8,745.98/12,069.70 = 4,767.35/x
  3. Step 3: Cross multiply
    8,745.98x = 12,069.70 × 4,767.35
  4. Step 4: Simplify right side
    8,745.98x = 57,540,412.03
  5. Step 5: Solve for x
    x = 57,540,412.03/8,745.98
  6. Step 6: Final answer
    x = 6,579.07

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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.