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Finding the Fourth Proportional to 9,363.60, 14,021.91 and 8,475.98

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Solution

The fourth proportional to 9,363.60, 14,021.91 and 8,475.98 is: 12,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.60 : 14,021.91 = 8,475.98 : x
  2. Step 2: Convert to fraction form
    9,363.60/14,021.91 = 8,475.98/x
  3. Step 3: Cross multiply
    9,363.60x = 14,021.91 × 8,475.98
  4. Step 4: Simplify right side
    9,363.60x = 118,849,358.61
  5. Step 5: Solve for x
    x = 118,849,358.61/9,363.60
  6. Step 6: Final answer
    x = 12,692.70

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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.