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Finding the Fourth Proportional to 26,361.64, 39,541.04 and 6,640.16

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Solution

The fourth proportional to 26,361.64, 39,541.04 and 6,640.16 is: 9,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,361.64 : 39,541.04 = 6,640.16 : x
  2. Step 2: Convert to fraction form
    26,361.64/39,541.04 = 6,640.16/x
  3. Step 3: Cross multiply
    26,361.64x = 39,541.04 × 6,640.16
  4. Step 4: Simplify right side
    26,361.64x = 262,558,832.17
  5. Step 5: Solve for x
    x = 262,558,832.17/26,361.64
  6. Step 6: Final answer
    x = 9,959.88

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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.