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Finding the Fourth Proportional to 14,040.18, 19,377 and 8,072.94

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Solution

The fourth proportional to 14,040.18, 19,377 and 8,072.94 is: 11,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.18 : 19,377 = 8,072.94 : x
  2. Step 2: Convert to fraction form
    14,040.18/19,377 = 8,072.94/x
  3. Step 3: Cross multiply
    14,040.18x = 19,377 × 8,072.94
  4. Step 4: Simplify right side
    14,040.18x = 156,429,358.38
  5. Step 5: Solve for x
    x = 156,429,358.38/14,040.18
  6. Step 6: Final answer
    x = 11,141.55

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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.