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Finding the Fourth Proportional to 22,692.36, 34,038.94 and 8,658.90

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Solution

The fourth proportional to 22,692.36, 34,038.94 and 8,658.90 is: 12,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,692.36 : 34,038.94 = 8,658.90 : x
  2. Step 2: Convert to fraction form
    22,692.36/34,038.94 = 8,658.90/x
  3. Step 3: Cross multiply
    22,692.36x = 34,038.94 × 8,658.90
  4. Step 4: Simplify right side
    22,692.36x = 294,739,777.57
  5. Step 5: Solve for x
    x = 294,739,777.57/22,692.36
  6. Step 6: Final answer
    x = 12,988.50

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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.