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Finding the Fourth Proportional to 9,018.77, 13,525.80 and 2,692.16

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Solution

The fourth proportional to 9,018.77, 13,525.80 and 2,692.16 is: 4,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.77 : 13,525.80 = 2,692.16 : x
  2. Step 2: Convert to fraction form
    9,018.77/13,525.80 = 2,692.16/x
  3. Step 3: Cross multiply
    9,018.77x = 13,525.80 × 2,692.16
  4. Step 4: Simplify right side
    9,018.77x = 36,413,617.73
  5. Step 5: Solve for x
    x = 36,413,617.73/9,018.77
  6. Step 6: Final answer
    x = 4,037.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.