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Finding the Fourth Proportional to 18,137.76, 25,025.88 and 10,579.68

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Solution

The fourth proportional to 18,137.76, 25,025.88 and 10,579.68 is: 14,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.76 : 25,025.88 = 10,579.68 : x
  2. Step 2: Convert to fraction form
    18,137.76/25,025.88 = 10,579.68/x
  3. Step 3: Cross multiply
    18,137.76x = 25,025.88 × 10,579.68
  4. Step 4: Simplify right side
    18,137.76x = 264,765,802.12
  5. Step 5: Solve for x
    x = 264,765,802.12/18,137.76
  6. Step 6: Final answer
    x = 14,597.49

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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.