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Finding the Fourth Proportional to 18,137.10, 25,340.10 and 18,137.10

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Solution

The fourth proportional to 18,137.10, 25,340.10 and 18,137.10 is: 25,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.10 : 25,340.10 = 18,137.10 : x
  2. Step 2: Convert to fraction form
    18,137.10/25,340.10 = 18,137.10/x
  3. Step 3: Cross multiply
    18,137.10x = 25,340.10 × 18,137.10
  4. Step 4: Simplify right side
    18,137.10x = 459,595,927.71
  5. Step 5: Solve for x
    x = 459,595,927.71/18,137.10
  6. Step 6: Final answer
    x = 25,340.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.