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Finding the Fourth Proportional to 70,069.80, 96,694.50 and 38,239.08

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Solution

The fourth proportional to 70,069.80, 96,694.50 and 38,239.08 is: 52,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,069.80 : 96,694.50 = 38,239.08 : x
  2. Step 2: Convert to fraction form
    70,069.80/96,694.50 = 38,239.08/x
  3. Step 3: Cross multiply
    70,069.80x = 96,694.50 × 38,239.08
  4. Step 4: Simplify right side
    70,069.80x = 3,697,508,721.06
  5. Step 5: Solve for x
    x = 3,697,508,721.06/70,069.80
  6. Step 6: Final answer
    x = 52,768.93

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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.