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Finding the Fourth Proportional to 14,487.48, 21,692.16 and 9,477.48

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Solution

The fourth proportional to 14,487.48, 21,692.16 and 9,477.48 is: 14,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.48 : 21,692.16 = 9,477.48 : x
  2. Step 2: Convert to fraction form
    14,487.48/21,692.16 = 9,477.48/x
  3. Step 3: Cross multiply
    14,487.48x = 21,692.16 × 9,477.48
  4. Step 4: Simplify right side
    14,487.48x = 205,587,012.56
  5. Step 5: Solve for x
    x = 205,587,012.56/14,487.48
  6. Step 6: Final answer
    x = 14,190.67

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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.