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Finding the Fourth Proportional to 70,814.94, 97,722.90 and 38,983.56

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Solution

The fourth proportional to 70,814.94, 97,722.90 and 38,983.56 is: 53,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,814.94 : 97,722.90 = 38,983.56 : x
  2. Step 2: Convert to fraction form
    70,814.94/97,722.90 = 38,983.56/x
  3. Step 3: Cross multiply
    70,814.94x = 97,722.90 × 38,983.56
  4. Step 4: Simplify right side
    70,814.94x = 3,809,586,535.52
  5. Step 5: Solve for x
    x = 3,809,586,535.52/70,814.94
  6. Step 6: Final answer
    x = 53,796.37

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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.