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Finding the Fourth Proportional to 18,754.58, 25,880.36 and 10,369.46

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Solution

The fourth proportional to 18,754.58, 25,880.36 and 10,369.46 is: 14,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.58 : 25,880.36 = 10,369.46 : x
  2. Step 2: Convert to fraction form
    18,754.58/25,880.36 = 10,369.46/x
  3. Step 3: Cross multiply
    18,754.58x = 25,880.36 × 10,369.46
  4. Step 4: Simplify right side
    18,754.58x = 268,365,357.81
  5. Step 5: Solve for x
    x = 268,365,357.81/18,754.58
  6. Step 6: Final answer
    x = 14,309.32

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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.