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Finding the Fourth Proportional to 9,561.37, 13,191 and 7,049.45

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Solution

The fourth proportional to 9,561.37, 13,191 and 7,049.45 is: 9,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,561.37 : 13,191 = 7,049.45 : x
  2. Step 2: Convert to fraction form
    9,561.37/13,191 = 7,049.45/x
  3. Step 3: Cross multiply
    9,561.37x = 13,191 × 7,049.45
  4. Step 4: Simplify right side
    9,561.37x = 92,989,278.46
  5. Step 5: Solve for x
    x = 92,989,278.46/9,561.37
  6. Step 6: Final answer
    x = 9,725.52

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Double scale
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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.