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Finding the Fourth Proportional to 26,912.40, 40,368.60 and 26,523.60

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Solution

The fourth proportional to 26,912.40, 40,368.60 and 26,523.60 is: 39,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.40 : 40,368.60 = 26,523.60 : x
  2. Step 2: Convert to fraction form
    26,912.40/40,368.60 = 26,523.60/x
  3. Step 3: Cross multiply
    26,912.40x = 40,368.60 × 26,523.60
  4. Step 4: Simplify right side
    26,912.40x = 1,070,720,598.96
  5. Step 5: Solve for x
    x = 1,070,720,598.96/26,912.40
  6. Step 6: Final answer
    x = 39,785.40

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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.