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Finding the Fourth Proportional to 18,425.21, 25,426.81 and 10,041.71

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Solution

The fourth proportional to 18,425.21, 25,426.81 and 10,041.71 is: 13,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.21 : 25,426.81 = 10,041.71 : x
  2. Step 2: Convert to fraction form
    18,425.21/25,426.81 = 10,041.71/x
  3. Step 3: Cross multiply
    18,425.21x = 25,426.81 × 10,041.71
  4. Step 4: Simplify right side
    18,425.21x = 255,328,500.01
  5. Step 5: Solve for x
    x = 255,328,500.01/18,425.21
  6. Step 6: Final answer
    x = 13,857.57

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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.