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Finding the Fourth Proportional to 8,483.72, 12,723.40 and 2,637.32

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Solution

The fourth proportional to 8,483.72, 12,723.40 and 2,637.32 is: 3,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.72 : 12,723.40 = 2,637.32 : x
  2. Step 2: Convert to fraction form
    8,483.72/12,723.40 = 2,637.32/x
  3. Step 3: Cross multiply
    8,483.72x = 12,723.40 × 2,637.32
  4. Step 4: Simplify right side
    8,483.72x = 33,555,677.29
  5. Step 5: Solve for x
    x = 33,555,677.29/8,483.72
  6. Step 6: Final answer
    x = 3,955.30

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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.