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Finding the Fourth Proportional to 7,895.06, 10,893.90 and 4,491.70

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Solution

The fourth proportional to 7,895.06, 10,893.90 and 4,491.70 is: 6,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.06 : 10,893.90 = 4,491.70 : x
  2. Step 2: Convert to fraction form
    7,895.06/10,893.90 = 4,491.70/x
  3. Step 3: Cross multiply
    7,895.06x = 10,893.90 × 4,491.70
  4. Step 4: Simplify right side
    7,895.06x = 48,932,130.63
  5. Step 5: Solve for x
    x = 48,932,130.63/7,895.06
  6. Step 6: Final answer
    x = 6,197.82

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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.