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Finding the Fourth Proportional to 60,652.80, 90,979.20 and 16,286.40

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Solution

The fourth proportional to 60,652.80, 90,979.20 and 16,286.40 is: 24,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,652.80 : 90,979.20 = 16,286.40 : x
  2. Step 2: Convert to fraction form
    60,652.80/90,979.20 = 16,286.40/x
  3. Step 3: Cross multiply
    60,652.80x = 90,979.20 × 16,286.40
  4. Step 4: Simplify right side
    60,652.80x = 1,481,723,642.88
  5. Step 5: Solve for x
    x = 1,481,723,642.88/60,652.80
  6. Step 6: Final answer
    x = 24,429.60

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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.