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Finding the Fourth Proportional to 18,015.75, 24,859.71 and 10,461.15

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Solution

The fourth proportional to 18,015.75, 24,859.71 and 10,461.15 is: 14,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.75 : 24,859.71 = 10,461.15 : x
  2. Step 2: Convert to fraction form
    18,015.75/24,859.71 = 10,461.15/x
  3. Step 3: Cross multiply
    18,015.75x = 24,859.71 × 10,461.15
  4. Step 4: Simplify right side
    18,015.75x = 260,061,155.27
  5. Step 5: Solve for x
    x = 260,061,155.27/18,015.75
  6. Step 6: Final answer
    x = 14,435.21

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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.