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Finding the Fourth Proportional to 4,886.67, 7,323.67 and 3,130.99

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Solution

The fourth proportional to 4,886.67, 7,323.67 and 3,130.99 is: 4,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.67 : 7,323.67 = 3,130.99 : x
  2. Step 2: Convert to fraction form
    4,886.67/7,323.67 = 3,130.99/x
  3. Step 3: Cross multiply
    4,886.67x = 7,323.67 × 3,130.99
  4. Step 4: Simplify right side
    4,886.67x = 22,930,337.53
  5. Step 5: Solve for x
    x = 22,930,337.53/4,886.67
  6. Step 6: Final answer
    x = 4,692.43

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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.