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Finding the Fourth Proportional to 14,865.52, 20,506.20 and 10,616.56

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Solution

The fourth proportional to 14,865.52, 20,506.20 and 10,616.56 is: 14,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.52 : 20,506.20 = 10,616.56 : x
  2. Step 2: Convert to fraction form
    14,865.52/20,506.20 = 10,616.56/x
  3. Step 3: Cross multiply
    14,865.52x = 20,506.20 × 10,616.56
  4. Step 4: Simplify right side
    14,865.52x = 217,705,302.67
  5. Step 5: Solve for x
    x = 217,705,302.67/14,865.52
  6. Step 6: Final answer
    x = 14,644.98

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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.