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Finding the Fourth Proportional to 69,969.76, 96,559.80 and 38,140.24

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Solution

The fourth proportional to 69,969.76, 96,559.80 and 38,140.24 is: 52,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.76 : 96,559.80 = 38,140.24 : x
  2. Step 2: Convert to fraction form
    69,969.76/96,559.80 = 38,140.24/x
  3. Step 3: Cross multiply
    69,969.76x = 96,559.80 × 38,140.24
  4. Step 4: Simplify right side
    69,969.76x = 3,682,813,946.35
  5. Step 5: Solve for x
    x = 3,682,813,946.35/69,969.76
  6. Step 6: Final answer
    x = 52,634.37

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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.