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Finding the Fourth Proportional to 7,893.38, 10,892.94 and 4,356.74

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Solution

The fourth proportional to 7,893.38, 10,892.94 and 4,356.74 is: 6,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.38 : 10,892.94 = 4,356.74 : x
  2. Step 2: Convert to fraction form
    7,893.38/10,892.94 = 4,356.74/x
  3. Step 3: Cross multiply
    7,893.38x = 10,892.94 × 4,356.74
  4. Step 4: Simplify right side
    7,893.38x = 47,457,707.42
  5. Step 5: Solve for x
    x = 47,457,707.42/7,893.38
  6. Step 6: Final answer
    x = 6,012.34

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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.