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Finding the Fourth Proportional to 4,895.92, 7,336.68 and 3,858.40

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Solution

The fourth proportional to 4,895.92, 7,336.68 and 3,858.40 is: 5,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.92 : 7,336.68 = 3,858.40 : x
  2. Step 2: Convert to fraction form
    4,895.92/7,336.68 = 3,858.40/x
  3. Step 3: Cross multiply
    4,895.92x = 7,336.68 × 3,858.40
  4. Step 4: Simplify right side
    4,895.92x = 28,307,846.11
  5. Step 5: Solve for x
    x = 28,307,846.11/4,895.92
  6. Step 6: Final answer
    x = 5,781.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.