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Finding the Fourth Proportional to 7,903.66, 10,893.54 and 6,131.92

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Solution

The fourth proportional to 7,903.66, 10,893.54 and 6,131.92 is: 8,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.66 : 10,893.54 = 6,131.92 : x
  2. Step 2: Convert to fraction form
    7,903.66/10,893.54 = 6,131.92/x
  3. Step 3: Cross multiply
    7,903.66x = 10,893.54 × 6,131.92
  4. Step 4: Simplify right side
    7,903.66x = 66,798,315.80
  5. Step 5: Solve for x
    x = 66,798,315.80/7,903.66
  6. Step 6: Final answer
    x = 8,451.57

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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.