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Finding the Fourth Proportional to 2,956.66, 4,080.16 and 1,697.92

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Solution

The fourth proportional to 2,956.66, 4,080.16 and 1,697.92 is: 2,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.66 : 4,080.16 = 1,697.92 : x
  2. Step 2: Convert to fraction form
    2,956.66/4,080.16 = 1,697.92/x
  3. Step 3: Cross multiply
    2,956.66x = 4,080.16 × 1,697.92
  4. Step 4: Simplify right side
    2,956.66x = 6,927,756.38
  5. Step 5: Solve for x
    x = 6,927,756.38/2,956.66
  6. Step 6: Final answer
    x = 2,343.11

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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.