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Finding the Fourth Proportional to 18,750.98, 25,876.73 and 10,253.64

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Solution

The fourth proportional to 18,750.98, 25,876.73 and 10,253.64 is: 14,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.98 : 25,876.73 = 10,253.64 : x
  2. Step 2: Convert to fraction form
    18,750.98/25,876.73 = 10,253.64/x
  3. Step 3: Cross multiply
    18,750.98x = 25,876.73 × 10,253.64
  4. Step 4: Simplify right side
    18,750.98x = 265,330,673.80
  5. Step 5: Solve for x
    x = 265,330,673.80/18,750.98
  6. Step 6: Final answer
    x = 14,150.23

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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.