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Finding the Fourth Proportional to 18,118.81, 24,999.22 and 10,460.20

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Solution

The fourth proportional to 18,118.81, 24,999.22 and 10,460.20 is: 14,432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.81 : 24,999.22 = 10,460.20 : x
  2. Step 2: Convert to fraction form
    18,118.81/24,999.22 = 10,460.20/x
  3. Step 3: Cross multiply
    18,118.81x = 24,999.22 × 10,460.20
  4. Step 4: Simplify right side
    18,118.81x = 261,496,841.04
  5. Step 5: Solve for x
    x = 261,496,841.04/18,118.81
  6. Step 6: Final answer
    x = 14,432.34

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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.