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Finding the Fourth Proportional to 5,373.09, 7,414.92 and 3,136.32

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Solution

The fourth proportional to 5,373.09, 7,414.92 and 3,136.32 is: 4,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.09 : 7,414.92 = 3,136.32 : x
  2. Step 2: Convert to fraction form
    5,373.09/7,414.92 = 3,136.32/x
  3. Step 3: Cross multiply
    5,373.09x = 7,414.92 × 3,136.32
  4. Step 4: Simplify right side
    5,373.09x = 23,255,561.89
  5. Step 5: Solve for x
    x = 23,255,561.89/5,373.09
  6. Step 6: Final answer
    x = 4,328.15

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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.