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Finding the Fourth Proportional to 2,345.84, 3,239.41 and 1,508.00

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Solution

The fourth proportional to 2,345.84, 3,239.41 and 1,508.00 is: 2,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.84 : 3,239.41 = 1,508.00 : x
  2. Step 2: Convert to fraction form
    2,345.84/3,239.41 = 1,508.00/x
  3. Step 3: Cross multiply
    2,345.84x = 3,239.41 × 1,508.00
  4. Step 4: Simplify right side
    2,345.84x = 4,885,031.36
  5. Step 5: Solve for x
    x = 4,885,031.36/2,345.84
  6. Step 6: Final answer
    x = 2,082.42

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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.