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Finding the Fourth Proportional to 51,908.40, 77,920.20 and 48,524.40

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Solution

The fourth proportional to 51,908.40, 77,920.20 and 48,524.40 is: 72,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,908.40 : 77,920.20 = 48,524.40 : x
  2. Step 2: Convert to fraction form
    51,908.40/77,920.20 = 48,524.40/x
  3. Step 3: Cross multiply
    51,908.40x = 77,920.20 × 48,524.40
  4. Step 4: Simplify right side
    51,908.40x = 3,781,030,952.88
  5. Step 5: Solve for x
    x = 3,781,030,952.88/51,908.40
  6. Step 6: Final answer
    x = 72,840.44

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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.