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Finding the Fourth Proportional to 18,394.76, 25,384.41 and 10,328.60

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Solution

The fourth proportional to 18,394.76, 25,384.41 and 10,328.60 is: 14,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.76 : 25,384.41 = 10,328.60 : x
  2. Step 2: Convert to fraction form
    18,394.76/25,384.41 = 10,328.60/x
  3. Step 3: Cross multiply
    18,394.76x = 25,384.41 × 10,328.60
  4. Step 4: Simplify right side
    18,394.76x = 262,185,480.59
  5. Step 5: Solve for x
    x = 262,185,480.59/18,394.76
  6. Step 6: Final answer
    x = 14,253.27

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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.