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Finding the Fourth Proportional to 18,613.21, 27,925.02 and 7,527.68

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Solution

The fourth proportional to 18,613.21, 27,925.02 and 7,527.68 is: 11,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.21 : 27,925.02 = 7,527.68 : x
  2. Step 2: Convert to fraction form
    18,613.21/27,925.02 = 7,527.68/x
  3. Step 3: Cross multiply
    18,613.21x = 27,925.02 × 7,527.68
  4. Step 4: Simplify right side
    18,613.21x = 210,210,474.93
  5. Step 5: Solve for x
    x = 210,210,474.93/18,613.21
  6. Step 6: Final answer
    x = 11,293.62

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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.