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Finding the Fourth Proportional to 48,253, 72,379.91 and 18,674.23

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Solution

The fourth proportional to 48,253, 72,379.91 and 18,674.23 is: 28,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,253 : 72,379.91 = 18,674.23 : x
  2. Step 2: Convert to fraction form
    48,253/72,379.91 = 18,674.23/x
  3. Step 3: Cross multiply
    48,253x = 72,379.91 × 18,674.23
  4. Step 4: Simplify right side
    48,253x = 1,351,639,086.72
  5. Step 5: Solve for x
    x = 1,351,639,086.72/48,253
  6. Step 6: Final answer
    x = 28,011.50

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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.