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Finding the Fourth Proportional to 2,402.06, 3,602.22 and 841.64

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Solution

The fourth proportional to 2,402.06, 3,602.22 and 841.64 is: 1,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.06 : 3,602.22 = 841.64 : x
  2. Step 2: Convert to fraction form
    2,402.06/3,602.22 = 841.64/x
  3. Step 3: Cross multiply
    2,402.06x = 3,602.22 × 841.64
  4. Step 4: Simplify right side
    2,402.06x = 3,031,772.44
  5. Step 5: Solve for x
    x = 3,031,772.44/2,402.06
  6. Step 6: Final answer
    x = 1,262.16

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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.