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Finding the Fourth Proportional to 18,453.87, 25,465.89 and 10,495.59

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Solution

The fourth proportional to 18,453.87, 25,465.89 and 10,495.59 is: 14,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.87 : 25,465.89 = 10,495.59 : x
  2. Step 2: Convert to fraction form
    18,453.87/25,465.89 = 10,495.59/x
  3. Step 3: Cross multiply
    18,453.87x = 25,465.89 × 10,495.59
  4. Step 4: Simplify right side
    18,453.87x = 267,279,405.57
  5. Step 5: Solve for x
    x = 267,279,405.57/18,453.87
  6. Step 6: Final answer
    x = 14,483.65

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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.