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Finding the Fourth Proportional to 18,602.65, 25,676.08 and 10,649.46

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Solution

The fourth proportional to 18,602.65, 25,676.08 and 10,649.46 is: 14,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.65 : 25,676.08 = 10,649.46 : x
  2. Step 2: Convert to fraction form
    18,602.65/25,676.08 = 10,649.46/x
  3. Step 3: Cross multiply
    18,602.65x = 25,676.08 × 10,649.46
  4. Step 4: Simplify right side
    18,602.65x = 273,436,360.29
  5. Step 5: Solve for x
    x = 273,436,360.29/18,602.65
  6. Step 6: Final answer
    x = 14,698.79

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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.