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Finding the Fourth Proportional to 73,485.84, 101,409.92 and 39,951.84

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Solution

The fourth proportional to 73,485.84, 101,409.92 and 39,951.84 is: 55,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.84 : 101,409.92 = 39,951.84 : x
  2. Step 2: Convert to fraction form
    73,485.84/101,409.92 = 39,951.84/x
  3. Step 3: Cross multiply
    73,485.84x = 101,409.92 × 39,951.84
  4. Step 4: Simplify right side
    73,485.84x = 4,051,512,898.25
  5. Step 5: Solve for x
    x = 4,051,512,898.25/73,485.84
  6. Step 6: Final answer
    x = 55,133.25

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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.