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Finding the Fourth Proportional to 7,894.25, 10,893.86 and 4,357.38

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Solution

The fourth proportional to 7,894.25, 10,893.86 and 4,357.38 is: 6,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.25 : 10,893.86 = 4,357.38 : x
  2. Step 2: Convert to fraction form
    7,894.25/10,893.86 = 4,357.38/x
  3. Step 3: Cross multiply
    7,894.25x = 10,893.86 × 4,357.38
  4. Step 4: Simplify right side
    7,894.25x = 47,468,693.13
  5. Step 5: Solve for x
    x = 47,468,693.13/7,894.25
  6. Step 6: Final answer
    x = 6,013.07

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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.