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Finding the Fourth Proportional to 70,028.65, 96,630.42 and 39,813.33

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Solution

The fourth proportional to 70,028.65, 96,630.42 and 39,813.33 is: 54,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,028.65 : 96,630.42 = 39,813.33 : x
  2. Step 2: Convert to fraction form
    70,028.65/96,630.42 = 39,813.33/x
  3. Step 3: Cross multiply
    70,028.65x = 96,630.42 × 39,813.33
  4. Step 4: Simplify right side
    70,028.65x = 3,847,178,799.50
  5. Step 5: Solve for x
    x = 3,847,178,799.50/70,028.65
  6. Step 6: Final answer
    x = 54,937.21

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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.