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Finding the Fourth Proportional to 9,918.56, 13,588.58 and 9,544.95

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Solution

The fourth proportional to 9,918.56, 13,588.58 and 9,544.95 is: 13,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.56 : 13,588.58 = 9,544.95 : x
  2. Step 2: Convert to fraction form
    9,918.56/13,588.58 = 9,544.95/x
  3. Step 3: Cross multiply
    9,918.56x = 13,588.58 × 9,544.95
  4. Step 4: Simplify right side
    9,918.56x = 129,702,340.53
  5. Step 5: Solve for x
    x = 129,702,340.53/9,918.56
  6. Step 6: Final answer
    x = 13,076.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.