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Finding the Fourth Proportional to 48,855.60, 73,307.70 and 19,274.40

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Solution

The fourth proportional to 48,855.60, 73,307.70 and 19,274.40 is: 28,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,855.60 : 73,307.70 = 19,274.40 : x
  2. Step 2: Convert to fraction form
    48,855.60/73,307.70 = 19,274.40/x
  3. Step 3: Cross multiply
    48,855.60x = 73,307.70 × 19,274.40
  4. Step 4: Simplify right side
    48,855.60x = 1,412,961,932.88
  5. Step 5: Solve for x
    x = 1,412,961,932.88/48,855.60
  6. Step 6: Final answer
    x = 28,921.19

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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.