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Finding the Fourth Proportional to 73,485.60, 101,410.89 and 39,951.60

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Solution

The fourth proportional to 73,485.60, 101,410.89 and 39,951.60 is: 55,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.60 : 101,410.89 = 39,951.60 : x
  2. Step 2: Convert to fraction form
    73,485.60/101,410.89 = 39,951.60/x
  3. Step 3: Cross multiply
    73,485.60x = 101,410.89 × 39,951.60
  4. Step 4: Simplify right side
    73,485.60x = 4,051,527,312.92
  5. Step 5: Solve for x
    x = 4,051,527,312.92/73,485.60
  6. Step 6: Final answer
    x = 55,133.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.