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Finding the Fourth Proportional to 71,901.57, 99,194.94 and 47,713.94

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Solution

The fourth proportional to 71,901.57, 99,194.94 and 47,713.94 is: 65,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901.57 : 99,194.94 = 47,713.94 : x
  2. Step 2: Convert to fraction form
    71,901.57/99,194.94 = 47,713.94/x
  3. Step 3: Cross multiply
    71,901.57x = 99,194.94 × 47,713.94
  4. Step 4: Simplify right side
    71,901.57x = 4,732,980,919.49
  5. Step 5: Solve for x
    x = 4,732,980,919.49/71,901.57
  6. Step 6: Final answer
    x = 65,825.84

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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.