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Finding the Fourth Proportional to 18,950.64, 26,150.69 and 10,451.12

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Solution

The fourth proportional to 18,950.64, 26,150.69 and 10,451.12 is: 14,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.64 : 26,150.69 = 10,451.12 : x
  2. Step 2: Convert to fraction form
    18,950.64/26,150.69 = 10,451.12/x
  3. Step 3: Cross multiply
    18,950.64x = 26,150.69 × 10,451.12
  4. Step 4: Simplify right side
    18,950.64x = 273,303,816.26
  5. Step 5: Solve for x
    x = 273,303,816.26/18,950.64
  6. Step 6: Final answer
    x = 14,421.88

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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.