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Finding the Fourth Proportional to 4,691.93, 7,035.64 and 1,728.34

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Solution

The fourth proportional to 4,691.93, 7,035.64 and 1,728.34 is: 2,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.93 : 7,035.64 = 1,728.34 : x
  2. Step 2: Convert to fraction form
    4,691.93/7,035.64 = 1,728.34/x
  3. Step 3: Cross multiply
    4,691.93x = 7,035.64 × 1,728.34
  4. Step 4: Simplify right side
    4,691.93x = 12,159,956.13
  5. Step 5: Solve for x
    x = 12,159,956.13/4,691.93
  6. Step 6: Final answer
    x = 2,591.68

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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.