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Finding the Fourth Proportional to 48,809.70, 73,117.35 and 28,008.90

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Solution

The fourth proportional to 48,809.70, 73,117.35 and 28,008.90 is: 41,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,809.70 : 73,117.35 = 28,008.90 : x
  2. Step 2: Convert to fraction form
    48,809.70/73,117.35 = 28,008.90/x
  3. Step 3: Cross multiply
    48,809.70x = 73,117.35 × 28,008.90
  4. Step 4: Simplify right side
    48,809.70x = 2,047,936,544.42
  5. Step 5: Solve for x
    x = 2,047,936,544.42/48,809.70
  6. Step 6: Final answer
    x = 41,957.57

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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.