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Finding the Fourth Proportional to 5,746.92, 7,930.64 and 3,389.82

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Solution

The fourth proportional to 5,746.92, 7,930.64 and 3,389.82 is: 4,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,746.92 : 7,930.64 = 3,389.82 : x
  2. Step 2: Convert to fraction form
    5,746.92/7,930.64 = 3,389.82/x
  3. Step 3: Cross multiply
    5,746.92x = 7,930.64 × 3,389.82
  4. Step 4: Simplify right side
    5,746.92x = 26,883,442.08
  5. Step 5: Solve for x
    x = 26,883,442.08/5,746.92
  6. Step 6: Final answer
    x = 4,677.89

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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.