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Finding the Fourth Proportional to 76,476.79, 105,626.28 and 50,941.09

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Solution

The fourth proportional to 76,476.79, 105,626.28 and 50,941.09 is: 70,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,476.79 : 105,626.28 = 50,941.09 : x
  2. Step 2: Convert to fraction form
    76,476.79/105,626.28 = 50,941.09/x
  3. Step 3: Cross multiply
    76,476.79x = 105,626.28 × 50,941.09
  4. Step 4: Simplify right side
    76,476.79x = 5,380,717,835.85
  5. Step 5: Solve for x
    x = 5,380,717,835.85/76,476.79
  6. Step 6: Final answer
    x = 70,357.53

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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.