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Finding the Fourth Proportional to 70,903.85, 97,847.97 and 39,073.88

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Solution

The fourth proportional to 70,903.85, 97,847.97 and 39,073.88 is: 53,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903.85 : 97,847.97 = 39,073.88 : x
  2. Step 2: Convert to fraction form
    70,903.85/97,847.97 = 39,073.88/x
  3. Step 3: Cross multiply
    70,903.85x = 97,847.97 × 39,073.88
  4. Step 4: Simplify right side
    70,903.85x = 3,823,299,642.65
  5. Step 5: Solve for x
    x = 3,823,299,642.65/70,903.85
  6. Step 6: Final answer
    x = 53,922.31

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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.