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Finding the Fourth Proportional to 70,754.37, 97,641.50 and 38,922.45

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Solution

The fourth proportional to 70,754.37, 97,641.50 and 38,922.45 is: 53,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,754.37 : 97,641.50 = 38,922.45 : x
  2. Step 2: Convert to fraction form
    70,754.37/97,641.50 = 38,922.45/x
  3. Step 3: Cross multiply
    70,754.37x = 97,641.50 × 38,922.45
  4. Step 4: Simplify right side
    70,754.37x = 3,800,446,207.06
  5. Step 5: Solve for x
    x = 3,800,446,207.06/70,754.37
  6. Step 6: Final answer
    x = 53,713.24

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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.