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Finding the Fourth Proportional to 4,136.80, 5,708.80 and 2,368.96

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Solution

The fourth proportional to 4,136.80, 5,708.80 and 2,368.96 is: 3,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.80 : 5,708.80 = 2,368.96 : x
  2. Step 2: Convert to fraction form
    4,136.80/5,708.80 = 2,368.96/x
  3. Step 3: Cross multiply
    4,136.80x = 5,708.80 × 2,368.96
  4. Step 4: Simplify right side
    4,136.80x = 13,523,918.85
  5. Step 5: Solve for x
    x = 13,523,918.85/4,136.80
  6. Step 6: Final answer
    x = 3,269.17

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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.