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Finding the Fourth Proportional to 9,197.70, 12,692.70 and 5,005.96

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Solution

The fourth proportional to 9,197.70, 12,692.70 and 5,005.96 is: 6,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,197.70 : 12,692.70 = 5,005.96 : x
  2. Step 2: Convert to fraction form
    9,197.70/12,692.70 = 5,005.96/x
  3. Step 3: Cross multiply
    9,197.70x = 12,692.70 × 5,005.96
  4. Step 4: Simplify right side
    9,197.70x = 63,539,148.49
  5. Step 5: Solve for x
    x = 63,539,148.49/9,197.70
  6. Step 6: Final answer
    x = 6,908.16

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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.