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Finding the Fourth Proportional to 2,974.76, 4,457.62 and 2,355.88

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Solution

The fourth proportional to 2,974.76, 4,457.62 and 2,355.88 is: 3,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.76 : 4,457.62 = 2,355.88 : x
  2. Step 2: Convert to fraction form
    2,974.76/4,457.62 = 2,355.88/x
  3. Step 3: Cross multiply
    2,974.76x = 4,457.62 × 2,355.88
  4. Step 4: Simplify right side
    2,974.76x = 10,501,617.81
  5. Step 5: Solve for x
    x = 10,501,617.81/2,974.76
  6. Step 6: Final answer
    x = 3,530.24

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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.