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Finding the Fourth Proportional to 12,095.70, 16,692.80 and 7,380.02

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Solution

The fourth proportional to 12,095.70, 16,692.80 and 7,380.02 is: 10,184.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095.70 : 16,692.80 = 7,380.02 : x
  2. Step 2: Convert to fraction form
    12,095.70/16,692.80 = 7,380.02/x
  3. Step 3: Cross multiply
    12,095.70x = 16,692.80 × 7,380.02
  4. Step 4: Simplify right side
    12,095.70x = 123,193,077.49
  5. Step 5: Solve for x
    x = 123,193,077.49/12,095.70
  6. Step 6: Final answer
    x = 10,184.87

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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.