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Finding the Fourth Proportional to 26,603.81, 36,711.81 and 14,664.81

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Solution

The fourth proportional to 26,603.81, 36,711.81 and 14,664.81 is: 20,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,603.81 : 36,711.81 = 14,664.81 : x
  2. Step 2: Convert to fraction form
    26,603.81/36,711.81 = 14,664.81/x
  3. Step 3: Cross multiply
    26,603.81x = 36,711.81 × 14,664.81
  4. Step 4: Simplify right side
    26,603.81x = 538,371,718.41
  5. Step 5: Solve for x
    x = 538,371,718.41/26,603.81
  6. Step 6: Final answer
    x = 20,236.64

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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.