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Finding the Fourth Proportional to 18,293.14, 25,244.49 and 9,909.64

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Solution

The fourth proportional to 18,293.14, 25,244.49 and 9,909.64 is: 13,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.14 : 25,244.49 = 9,909.64 : x
  2. Step 2: Convert to fraction form
    18,293.14/25,244.49 = 9,909.64/x
  3. Step 3: Cross multiply
    18,293.14x = 25,244.49 × 9,909.64
  4. Step 4: Simplify right side
    18,293.14x = 250,163,807.88
  5. Step 5: Solve for x
    x = 250,163,807.88/18,293.14
  6. Step 6: Final answer
    x = 13,675.28

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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.