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Finding the Fourth Proportional to 72,056.76, 108,072.54 and 32,604.60

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Solution

The fourth proportional to 72,056.76, 108,072.54 and 32,604.60 is: 48,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,056.76 : 108,072.54 = 32,604.60 : x
  2. Step 2: Convert to fraction form
    72,056.76/108,072.54 = 32,604.60/x
  3. Step 3: Cross multiply
    72,056.76x = 108,072.54 × 32,604.60
  4. Step 4: Simplify right side
    72,056.76x = 3,523,661,937.68
  5. Step 5: Solve for x
    x = 3,523,661,937.68/72,056.76
  6. Step 6: Final answer
    x = 48,901.20

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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.