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Finding the Fourth Proportional to 9,645.44, 13,310.88 and 5,453.60

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Solution

The fourth proportional to 9,645.44, 13,310.88 and 5,453.60 is: 7,526.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.44 : 13,310.88 = 5,453.60 : x
  2. Step 2: Convert to fraction form
    9,645.44/13,310.88 = 5,453.60/x
  3. Step 3: Cross multiply
    9,645.44x = 13,310.88 × 5,453.60
  4. Step 4: Simplify right side
    9,645.44x = 72,592,215.17
  5. Step 5: Solve for x
    x = 72,592,215.17/9,645.44
  6. Step 6: Final answer
    x = 7,526.07

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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.