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Finding the Fourth Proportional to 26,165.70, 39,255.03 and 7,697.70

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Solution

The fourth proportional to 26,165.70, 39,255.03 and 7,697.70 is: 11,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,165.70 : 39,255.03 = 7,697.70 : x
  2. Step 2: Convert to fraction form
    26,165.70/39,255.03 = 7,697.70/x
  3. Step 3: Cross multiply
    26,165.70x = 39,255.03 × 7,697.70
  4. Step 4: Simplify right side
    26,165.70x = 302,173,444.43
  5. Step 5: Solve for x
    x = 302,173,444.43/26,165.70
  6. Step 6: Final answer
    x = 11,548.46

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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.