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Finding the Fourth Proportional to 32,616.79, 48,909.76 and 12,635.64

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Solution

The fourth proportional to 32,616.79, 48,909.76 and 12,635.64 is: 18,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,616.79 : 48,909.76 = 12,635.64 : x
  2. Step 2: Convert to fraction form
    32,616.79/48,909.76 = 12,635.64/x
  3. Step 3: Cross multiply
    32,616.79x = 48,909.76 × 12,635.64
  4. Step 4: Simplify right side
    32,616.79x = 618,006,119.85
  5. Step 5: Solve for x
    x = 618,006,119.85/32,616.79
  6. Step 6: Final answer
    x = 18,947.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.