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Finding the Fourth Proportional to 25,454.66, 38,189.05 and 10,660.05

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Solution

The fourth proportional to 25,454.66, 38,189.05 and 10,660.05 is: 15,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454.66 : 38,189.05 = 10,660.05 : x
  2. Step 2: Convert to fraction form
    25,454.66/38,189.05 = 10,660.05/x
  3. Step 3: Cross multiply
    25,454.66x = 38,189.05 × 10,660.05
  4. Step 4: Simplify right side
    25,454.66x = 407,097,155.80
  5. Step 5: Solve for x
    x = 407,097,155.80/25,454.66
  6. Step 6: Final answer
    x = 15,993.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.