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Finding the Fourth Proportional to 9,538.25, 13,164 and 5,346.50

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Solution

The fourth proportional to 9,538.25, 13,164 and 5,346.50 is: 7,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,538.25 : 13,164 = 5,346.50 : x
  2. Step 2: Convert to fraction form
    9,538.25/13,164 = 5,346.50/x
  3. Step 3: Cross multiply
    9,538.25x = 13,164 × 5,346.50
  4. Step 4: Simplify right side
    9,538.25x = 70,381,326
  5. Step 5: Solve for x
    x = 70,381,326/9,538.25
  6. Step 6: Final answer
    x = 7,378.85

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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.