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Finding the Fourth Proportional to 48,009.40, 72,014.10 and 44,207.80

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Solution

The fourth proportional to 48,009.40, 72,014.10 and 44,207.80 is: 66,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.40 : 72,014.10 = 44,207.80 : x
  2. Step 2: Convert to fraction form
    48,009.40/72,014.10 = 44,207.80/x
  3. Step 3: Cross multiply
    48,009.40x = 72,014.10 × 44,207.80
  4. Step 4: Simplify right side
    48,009.40x = 3,183,584,929.98
  5. Step 5: Solve for x
    x = 3,183,584,929.98/48,009.40
  6. Step 6: Final answer
    x = 66,311.70

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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.