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Finding the Fourth Proportional to 49,342.80, 74,014.20 and 48,905.40

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Solution

The fourth proportional to 49,342.80, 74,014.20 and 48,905.40 is: 73,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,342.80 : 74,014.20 = 48,905.40 : x
  2. Step 2: Convert to fraction form
    49,342.80/74,014.20 = 48,905.40/x
  3. Step 3: Cross multiply
    49,342.80x = 74,014.20 × 48,905.40
  4. Step 4: Simplify right side
    49,342.80x = 3,619,694,056.68
  5. Step 5: Solve for x
    x = 3,619,694,056.68/49,342.80
  6. Step 6: Final answer
    x = 73,358.10

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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.