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Finding the Fourth Proportional to 2,424, 3,345.12 and 1,376.22

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Solution

The fourth proportional to 2,424, 3,345.12 and 1,376.22 is: 1,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424 : 3,345.12 = 1,376.22 : x
  2. Step 2: Convert to fraction form
    2,424/3,345.12 = 1,376.22/x
  3. Step 3: Cross multiply
    2,424x = 3,345.12 × 1,376.22
  4. Step 4: Simplify right side
    2,424x = 4,603,621.05
  5. Step 5: Solve for x
    x = 4,603,621.05/2,424
  6. Step 6: Final answer
    x = 1,899.18

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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.