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Finding the Fourth Proportional to 27,274.68, 40,862.58 and 12,495.96

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Solution

The fourth proportional to 27,274.68, 40,862.58 and 12,495.96 is: 18,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,274.68 : 40,862.58 = 12,495.96 : x
  2. Step 2: Convert to fraction form
    27,274.68/40,862.58 = 12,495.96/x
  3. Step 3: Cross multiply
    27,274.68x = 40,862.58 × 12,495.96
  4. Step 4: Simplify right side
    27,274.68x = 510,617,165.18
  5. Step 5: Solve for x
    x = 510,617,165.18/27,274.68
  6. Step 6: Final answer
    x = 18,721.29

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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.