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Finding the Fourth Proportional to 26,785.40, 40,174.85 and 7,065.44

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Solution

The fourth proportional to 26,785.40, 40,174.85 and 7,065.44 is: 10,597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,785.40 : 40,174.85 = 7,065.44 : x
  2. Step 2: Convert to fraction form
    26,785.40/40,174.85 = 7,065.44/x
  3. Step 3: Cross multiply
    26,785.40x = 40,174.85 × 7,065.44
  4. Step 4: Simplify right side
    26,785.40x = 283,852,959.63
  5. Step 5: Solve for x
    x = 283,852,959.63/26,785.40
  6. Step 6: Final answer
    x = 10,597.30

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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.