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Finding the Fourth Proportional to 60,879.30, 83,959.02 and 38,220.39

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Solution

The fourth proportional to 60,879.30, 83,959.02 and 38,220.39 is: 52,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,879.30 : 83,959.02 = 38,220.39 : x
  2. Step 2: Convert to fraction form
    60,879.30/83,959.02 = 38,220.39/x
  3. Step 3: Cross multiply
    60,879.30x = 83,959.02 × 38,220.39
  4. Step 4: Simplify right side
    60,879.30x = 3,208,946,488.42
  5. Step 5: Solve for x
    x = 3,208,946,488.42/60,879.30
  6. Step 6: Final answer
    x = 52,709.98

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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.