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Finding the Fourth Proportional to 2,465.92, 3,696.96 and 926.08

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Solution

The fourth proportional to 2,465.92, 3,696.96 and 926.08 is: 1,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.92 : 3,696.96 = 926.08 : x
  2. Step 2: Convert to fraction form
    2,465.92/3,696.96 = 926.08/x
  3. Step 3: Cross multiply
    2,465.92x = 3,696.96 × 926.08
  4. Step 4: Simplify right side
    2,465.92x = 3,423,680.72
  5. Step 5: Solve for x
    x = 3,423,680.72/2,465.92
  6. Step 6: Final answer
    x = 1,388.40

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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.