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Finding the Fourth Proportional to 14,962.91, 20,648.96 and 8,248.79

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Solution

The fourth proportional to 14,962.91, 20,648.96 and 8,248.79 is: 11,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.91 : 20,648.96 = 8,248.79 : x
  2. Step 2: Convert to fraction form
    14,962.91/20,648.96 = 8,248.79/x
  3. Step 3: Cross multiply
    14,962.91x = 20,648.96 × 8,248.79
  4. Step 4: Simplify right side
    14,962.91x = 170,328,790.27
  5. Step 5: Solve for x
    x = 170,328,790.27/14,962.91
  6. Step 6: Final answer
    x = 11,383.40

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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.