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Finding the Fourth Proportional to 9,692.68, 13,376.64 and 5,501.20

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Solution

The fourth proportional to 9,692.68, 13,376.64 and 5,501.20 is: 7,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,692.68 : 13,376.64 = 5,501.20 : x
  2. Step 2: Convert to fraction form
    9,692.68/13,376.64 = 5,501.20/x
  3. Step 3: Cross multiply
    9,692.68x = 13,376.64 × 5,501.20
  4. Step 4: Simplify right side
    9,692.68x = 73,587,571.97
  5. Step 5: Solve for x
    x = 73,587,571.97/9,692.68
  6. Step 6: Final answer
    x = 7,592.08

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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.