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Finding the Fourth Proportional to 70,449.94, 97,227.64 and 40,239.77

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Solution

The fourth proportional to 70,449.94, 97,227.64 and 40,239.77 is: 55,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.94 : 97,227.64 = 40,239.77 : x
  2. Step 2: Convert to fraction form
    70,449.94/97,227.64 = 40,239.77/x
  3. Step 3: Cross multiply
    70,449.94x = 97,227.64 × 40,239.77
  4. Step 4: Simplify right side
    70,449.94x = 3,912,418,013.71
  5. Step 5: Solve for x
    x = 3,912,418,013.71/70,449.94
  6. Step 6: Final answer
    x = 55,534.73

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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.