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Finding the Fourth Proportional to 8,745.30, 12,058.98 and 5,907.75

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Solution

The fourth proportional to 8,745.30, 12,058.98 and 5,907.75 is: 8,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.30 : 12,058.98 = 5,907.75 : x
  2. Step 2: Convert to fraction form
    8,745.30/12,058.98 = 5,907.75/x
  3. Step 3: Cross multiply
    8,745.30x = 12,058.98 × 5,907.75
  4. Step 4: Simplify right side
    8,745.30x = 71,241,439.10
  5. Step 5: Solve for x
    x = 71,241,439.10/8,745.30
  6. Step 6: Final answer
    x = 8,146.25

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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.