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Finding the Fourth Proportional to 18,526.53, 27,754.87 and 9,155.64

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Solution

The fourth proportional to 18,526.53, 27,754.87 and 9,155.64 is: 13,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.53 : 27,754.87 = 9,155.64 : x
  2. Step 2: Convert to fraction form
    18,526.53/27,754.87 = 9,155.64/x
  3. Step 3: Cross multiply
    18,526.53x = 27,754.87 × 9,155.64
  4. Step 4: Simplify right side
    18,526.53x = 254,113,597.97
  5. Step 5: Solve for x
    x = 254,113,597.97/18,526.53
  6. Step 6: Final answer
    x = 13,716.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.