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Finding the Fourth Proportional to 69,879.76, 96,432.82 and 38,048.08

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Solution

The fourth proportional to 69,879.76, 96,432.82 and 38,048.08 is: 52,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.76 : 96,432.82 = 38,048.08 : x
  2. Step 2: Convert to fraction form
    69,879.76/96,432.82 = 38,048.08/x
  3. Step 3: Cross multiply
    69,879.76x = 96,432.82 × 38,048.08
  4. Step 4: Simplify right side
    69,879.76x = 3,669,083,649.99
  5. Step 5: Solve for x
    x = 3,669,083,649.99/69,879.76
  6. Step 6: Final answer
    x = 52,505.67

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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.