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Finding the Fourth Proportional to 48,671.64, 73,007.61 and 13,611.60

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Solution

The fourth proportional to 48,671.64, 73,007.61 and 13,611.60 is: 20,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,671.64 : 73,007.61 = 13,611.60 : x
  2. Step 2: Convert to fraction form
    48,671.64/73,007.61 = 13,611.60/x
  3. Step 3: Cross multiply
    48,671.64x = 73,007.61 × 13,611.60
  4. Step 4: Simplify right side
    48,671.64x = 993,750,384.28
  5. Step 5: Solve for x
    x = 993,750,384.28/48,671.64
  6. Step 6: Final answer
    x = 20,417.44

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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.