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Finding the Fourth Proportional to 17,874.81, 24,666.12 and 9,916.56

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Solution

The fourth proportional to 17,874.81, 24,666.12 and 9,916.56 is: 13,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,874.81 : 24,666.12 = 9,916.56 : x
  2. Step 2: Convert to fraction form
    17,874.81/24,666.12 = 9,916.56/x
  3. Step 3: Cross multiply
    17,874.81x = 24,666.12 × 9,916.56
  4. Step 4: Simplify right side
    17,874.81x = 244,603,058.95
  5. Step 5: Solve for x
    x = 244,603,058.95/17,874.81
  6. Step 6: Final answer
    x = 13,684.23

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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.