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Finding the Fourth Proportional to 18,424.44, 25,424.88 and 10,466.52

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Solution

The fourth proportional to 18,424.44, 25,424.88 and 10,466.52 is: 14,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.44 : 25,424.88 = 10,466.52 : x
  2. Step 2: Convert to fraction form
    18,424.44/25,424.88 = 10,466.52/x
  3. Step 3: Cross multiply
    18,424.44x = 25,424.88 × 10,466.52
  4. Step 4: Simplify right side
    18,424.44x = 266,110,015.02
  5. Step 5: Solve for x
    x = 266,110,015.02/18,424.44
  6. Step 6: Final answer
    x = 14,443.32

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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.