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Finding the Fourth Proportional to 18,295.67, 25,248.60 and 10,338.40

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Solution

The fourth proportional to 18,295.67, 25,248.60 and 10,338.40 is: 14,267.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.67 : 25,248.60 = 10,338.40 : x
  2. Step 2: Convert to fraction form
    18,295.67/25,248.60 = 10,338.40/x
  3. Step 3: Cross multiply
    18,295.67x = 25,248.60 × 10,338.40
  4. Step 4: Simplify right side
    18,295.67x = 261,030,157.80
  5. Step 5: Solve for x
    x = 261,030,157.80/18,295.67
  6. Step 6: Final answer
    x = 14,267.32

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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.