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Finding the Fourth Proportional to 14,916.16, 20,583.85 and 8,542.54

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Solution

The fourth proportional to 14,916.16, 20,583.85 and 8,542.54 is: 11,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,916.16 : 20,583.85 = 8,542.54 : x
  2. Step 2: Convert to fraction form
    14,916.16/20,583.85 = 8,542.54/x
  3. Step 3: Cross multiply
    14,916.16x = 20,583.85 × 8,542.54
  4. Step 4: Simplify right side
    14,916.16x = 175,838,361.98
  5. Step 5: Solve for x
    x = 175,838,361.98/14,916.16
  6. Step 6: Final answer
    x = 11,788.45

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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.