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Finding the Fourth Proportional to 18,114.15, 24,999.87 and 10,158.03

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Solution

The fourth proportional to 18,114.15, 24,999.87 and 10,158.03 is: 14,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.15 : 24,999.87 = 10,158.03 : x
  2. Step 2: Convert to fraction form
    18,114.15/24,999.87 = 10,158.03/x
  3. Step 3: Cross multiply
    18,114.15x = 24,999.87 × 10,158.03
  4. Step 4: Simplify right side
    18,114.15x = 253,949,429.46
  5. Step 5: Solve for x
    x = 253,949,429.46/18,114.15
  6. Step 6: Final answer
    x = 14,019.40

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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.