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Finding the Fourth Proportional to 17,745.18, 24,485.94 and 9,787.74

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Solution

The fourth proportional to 17,745.18, 24,485.94 and 9,787.74 is: 13,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.18 : 24,485.94 = 9,787.74 : x
  2. Step 2: Convert to fraction form
    17,745.18/24,485.94 = 9,787.74/x
  3. Step 3: Cross multiply
    17,745.18x = 24,485.94 × 9,787.74
  4. Step 4: Simplify right side
    17,745.18x = 239,662,014.38
  5. Step 5: Solve for x
    x = 239,662,014.38/17,745.18
  6. Step 6: Final answer
    x = 13,505.75

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1.5x scale

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.