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Finding the Fourth Proportional to 5,749.98, 7,934 and 3,392.58

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Solution

The fourth proportional to 5,749.98, 7,934 and 3,392.58 is: 4,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749.98 : 7,934 = 3,392.58 : x
  2. Step 2: Convert to fraction form
    5,749.98/7,934 = 3,392.58/x
  3. Step 3: Cross multiply
    5,749.98x = 7,934 × 3,392.58
  4. Step 4: Simplify right side
    5,749.98x = 26,916,729.72
  5. Step 5: Solve for x
    x = 26,916,729.72/5,749.98
  6. Step 6: Final answer
    x = 4,681.19

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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.