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Finding the Fourth Proportional to 48,068.98, 72,056.60 and 19,209

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Solution

The fourth proportional to 48,068.98, 72,056.60 and 19,209 is: 28,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,068.98 : 72,056.60 = 19,209 : x
  2. Step 2: Convert to fraction form
    48,068.98/72,056.60 = 19,209/x
  3. Step 3: Cross multiply
    48,068.98x = 72,056.60 × 19,209
  4. Step 4: Simplify right side
    48,068.98x = 1,384,135,229.40
  5. Step 5: Solve for x
    x = 1,384,135,229.40/48,068.98
  6. Step 6: Final answer
    x = 28,794.77

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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.