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Finding the Fourth Proportional to 18,352.78, 25,326.90 and 10,799.40

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Solution

The fourth proportional to 18,352.78, 25,326.90 and 10,799.40 is: 14,903.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.78 : 25,326.90 = 10,799.40 : x
  2. Step 2: Convert to fraction form
    18,352.78/25,326.90 = 10,799.40/x
  3. Step 3: Cross multiply
    18,352.78x = 25,326.90 × 10,799.40
  4. Step 4: Simplify right side
    18,352.78x = 273,515,323.86
  5. Step 5: Solve for x
    x = 273,515,323.86/18,352.78
  6. Step 6: Final answer
    x = 14,903.21

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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.