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Finding the Fourth Proportional to 18,258.31, 25,194.99 and 10,703.71

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Solution

The fourth proportional to 18,258.31, 25,194.99 and 10,703.71 is: 14,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.31 : 25,194.99 = 10,703.71 : x
  2. Step 2: Convert to fraction form
    18,258.31/25,194.99 = 10,703.71/x
  3. Step 3: Cross multiply
    18,258.31x = 25,194.99 × 10,703.71
  4. Step 4: Simplify right side
    18,258.31x = 269,679,866.41
  5. Step 5: Solve for x
    x = 269,679,866.41/18,258.31
  6. Step 6: Final answer
    x = 14,770.25

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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.