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Finding the Fourth Proportional to 69,709.50, 96,199.56 and 37,878.39

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Solution

The fourth proportional to 69,709.50, 96,199.56 and 37,878.39 is: 52,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.50 : 96,199.56 = 37,878.39 : x
  2. Step 2: Convert to fraction form
    69,709.50/96,199.56 = 37,878.39/x
  3. Step 3: Cross multiply
    69,709.50x = 96,199.56 × 37,878.39
  4. Step 4: Simplify right side
    69,709.50x = 3,643,884,451.51
  5. Step 5: Solve for x
    x = 3,643,884,451.51/69,709.50
  6. Step 6: Final answer
    x = 52,272.42

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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.