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Finding the Fourth Proportional to 18,946, 26,145.66 and 10,562.68

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Solution

The fourth proportional to 18,946, 26,145.66 and 10,562.68 is: 14,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946 : 26,145.66 = 10,562.68 : x
  2. Step 2: Convert to fraction form
    18,946/26,145.66 = 10,562.68/x
  3. Step 3: Cross multiply
    18,946x = 26,145.66 × 10,562.68
  4. Step 4: Simplify right side
    18,946x = 276,168,239.97
  5. Step 5: Solve for x
    x = 276,168,239.97/18,946
  6. Step 6: Final answer
    x = 14,576.60

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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.