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Finding the Fourth Proportional to 22,846.95, 31,528.58 and 12,775.28

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Solution

The fourth proportional to 22,846.95, 31,528.58 and 12,775.28 is: 17,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,846.95 : 31,528.58 = 12,775.28 : x
  2. Step 2: Convert to fraction form
    22,846.95/31,528.58 = 12,775.28/x
  3. Step 3: Cross multiply
    22,846.95x = 31,528.58 × 12,775.28
  4. Step 4: Simplify right side
    22,846.95x = 402,786,215.98
  5. Step 5: Solve for x
    x = 402,786,215.98/22,846.95
  6. Step 6: Final answer
    x = 17,629.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.