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Finding the Fourth Proportional to 18,210.24, 25,107.84 and 14,425.92

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Solution

The fourth proportional to 18,210.24, 25,107.84 and 14,425.92 is: 19,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.24 : 25,107.84 = 14,425.92 : x
  2. Step 2: Convert to fraction form
    18,210.24/25,107.84 = 14,425.92/x
  3. Step 3: Cross multiply
    18,210.24x = 25,107.84 × 14,425.92
  4. Step 4: Simplify right side
    18,210.24x = 362,203,691.21
  5. Step 5: Solve for x
    x = 362,203,691.21/18,210.24
  6. Step 6: Final answer
    x = 19,890.11

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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.