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Finding the Fourth Proportional to 70,794.88, 97,697.21 and 38,964.91

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Solution

The fourth proportional to 70,794.88, 97,697.21 and 38,964.91 is: 53,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,794.88 : 97,697.21 = 38,964.91 : x
  2. Step 2: Convert to fraction form
    70,794.88/97,697.21 = 38,964.91/x
  3. Step 3: Cross multiply
    70,794.88x = 97,697.21 × 38,964.91
  4. Step 4: Simplify right side
    70,794.88x = 3,806,762,994.90
  5. Step 5: Solve for x
    x = 3,806,762,994.90/70,794.88
  6. Step 6: Final answer
    x = 53,771.73

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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.