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Finding the Fourth Proportional to 84,563.46, 126,859.59 and 29,146.50

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Solution

The fourth proportional to 84,563.46, 126,859.59 and 29,146.50 is: 43,724.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,563.46 : 126,859.59 = 29,146.50 : x
  2. Step 2: Convert to fraction form
    84,563.46/126,859.59 = 29,146.50/x
  3. Step 3: Cross multiply
    84,563.46x = 126,859.59 × 29,146.50
  4. Step 4: Simplify right side
    84,563.46x = 3,697,513,039.94
  5. Step 5: Solve for x
    x = 3,697,513,039.94/84,563.46
  6. Step 6: Final answer
    x = 43,724.71

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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.