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Finding the Fourth Proportional to 60,798.39, 83,903.18 and 38,138.33

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Solution

The fourth proportional to 60,798.39, 83,903.18 and 38,138.33 is: 52,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,798.39 : 83,903.18 = 38,138.33 : x
  2. Step 2: Convert to fraction form
    60,798.39/83,903.18 = 38,138.33/x
  3. Step 3: Cross multiply
    60,798.39x = 83,903.18 × 38,138.33
  4. Step 4: Simplify right side
    60,798.39x = 3,199,926,556.68
  5. Step 5: Solve for x
    x = 3,199,926,556.68/60,798.39
  6. Step 6: Final answer
    x = 52,631.76

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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.