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Finding the Fourth Proportional to 71,338.64, 106,969.08 and 29,754.32

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Solution

The fourth proportional to 71,338.64, 106,969.08 and 29,754.32 is: 44,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,338.64 : 106,969.08 = 29,754.32 : x
  2. Step 2: Convert to fraction form
    71,338.64/106,969.08 = 29,754.32/x
  3. Step 3: Cross multiply
    71,338.64x = 106,969.08 × 29,754.32
  4. Step 4: Simplify right side
    71,338.64x = 3,182,792,236.43
  5. Step 5: Solve for x
    x = 3,182,792,236.43/71,338.64
  6. Step 6: Final answer
    x = 44,615.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.