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Finding the Fourth Proportional to 18,767.98, 25,876.28 and 12,041.74

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Solution

The fourth proportional to 18,767.98, 25,876.28 and 12,041.74 is: 16,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.98 : 25,876.28 = 12,041.74 : x
  2. Step 2: Convert to fraction form
    18,767.98/25,876.28 = 12,041.74/x
  3. Step 3: Cross multiply
    18,767.98x = 25,876.28 × 12,041.74
  4. Step 4: Simplify right side
    18,767.98x = 311,595,435.93
  5. Step 5: Solve for x
    x = 311,595,435.93/18,767.98
  6. Step 6: Final answer
    x = 16,602.50

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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.