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Finding the Fourth Proportional to 5,349.08, 7,369.98 and 3,999.08

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Solution

The fourth proportional to 5,349.08, 7,369.98 and 3,999.08 is: 5,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.08 : 7,369.98 = 3,999.08 : x
  2. Step 2: Convert to fraction form
    5,349.08/7,369.98 = 3,999.08/x
  3. Step 3: Cross multiply
    5,349.08x = 7,369.98 × 3,999.08
  4. Step 4: Simplify right side
    5,349.08x = 29,473,139.62
  5. Step 5: Solve for x
    x = 29,473,139.62/5,349.08
  6. Step 6: Final answer
    x = 5,509.95

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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.