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Finding the Fourth Proportional to 18,448, 25,458.33 and 10,064.50

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Solution

The fourth proportional to 18,448, 25,458.33 and 10,064.50 is: 13,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448 : 25,458.33 = 10,064.50 : x
  2. Step 2: Convert to fraction form
    18,448/25,458.33 = 10,064.50/x
  3. Step 3: Cross multiply
    18,448x = 25,458.33 × 10,064.50
  4. Step 4: Simplify right side
    18,448x = 256,225,362.29
  5. Step 5: Solve for x
    x = 256,225,362.29/18,448
  6. Step 6: Final answer
    x = 13,889.06

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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.