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Finding the Fourth Proportional to 48,671.70, 73,007.55 and 30,239.70

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Solution

The fourth proportional to 48,671.70, 73,007.55 and 30,239.70 is: 45,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,671.70 : 73,007.55 = 30,239.70 : x
  2. Step 2: Convert to fraction form
    48,671.70/73,007.55 = 30,239.70/x
  3. Step 3: Cross multiply
    48,671.70x = 73,007.55 × 30,239.70
  4. Step 4: Simplify right side
    48,671.70x = 2,207,726,409.74
  5. Step 5: Solve for x
    x = 2,207,726,409.74/48,671.70
  6. Step 6: Final answer
    x = 45,359.55

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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.