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Finding the Fourth Proportional to 48,574.50, 72,861.90 and 13,514.20

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Solution

The fourth proportional to 48,574.50, 72,861.90 and 13,514.20 is: 20,271.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,574.50 : 72,861.90 = 13,514.20 : x
  2. Step 2: Convert to fraction form
    48,574.50/72,861.90 = 13,514.20/x
  3. Step 3: Cross multiply
    48,574.50x = 72,861.90 × 13,514.20
  4. Step 4: Simplify right side
    48,574.50x = 984,670,288.98
  5. Step 5: Solve for x
    x = 984,670,288.98/48,574.50
  6. Step 6: Final answer
    x = 20,271.34

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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.