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Finding the Fourth Proportional to 48,940.50, 73,410.15 and 13,880.16

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Solution

The fourth proportional to 48,940.50, 73,410.15 and 13,880.16 is: 20,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,940.50 : 73,410.15 = 13,880.16 : x
  2. Step 2: Convert to fraction form
    48,940.50/73,410.15 = 13,880.16/x
  3. Step 3: Cross multiply
    48,940.50x = 73,410.15 × 13,880.16
  4. Step 4: Simplify right side
    48,940.50x = 1,018,944,601.60
  5. Step 5: Solve for x
    x = 1,018,944,601.60/48,940.50
  6. Step 6: Final answer
    x = 20,820.07

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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.