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Finding the Fourth Proportional to 69,980.97, 96,575.00 and 38,151.21

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Solution

The fourth proportional to 69,980.97, 96,575.00 and 38,151.21 is: 52,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980.97 : 96,575.00 = 38,151.21 : x
  2. Step 2: Convert to fraction form
    69,980.97/96,575.00 = 38,151.21/x
  3. Step 3: Cross multiply
    69,980.97x = 96,575.00 × 38,151.21
  4. Step 4: Simplify right side
    69,980.97x = 3,684,452,914.99
  5. Step 5: Solve for x
    x = 3,684,452,914.99/69,980.97
  6. Step 6: Final answer
    x = 52,649.35

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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.