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Finding the Fourth Proportional to 18,103.50, 27,154.04 and 4,955.99

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Solution

The fourth proportional to 18,103.50, 27,154.04 and 4,955.99 is: 7,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.50 : 27,154.04 = 4,955.99 : x
  2. Step 2: Convert to fraction form
    18,103.50/27,154.04 = 4,955.99/x
  3. Step 3: Cross multiply
    18,103.50x = 27,154.04 × 4,955.99
  4. Step 4: Simplify right side
    18,103.50x = 134,574,990.15
  5. Step 5: Solve for x
    x = 134,574,990.15/18,103.50
  6. Step 6: Final answer
    x = 7,433.64

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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.