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Finding the Fourth Proportional to 26,608.40, 39,919.53 and 9,968.67

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Solution

The fourth proportional to 26,608.40, 39,919.53 and 9,968.67 is: 14,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.40 : 39,919.53 = 9,968.67 : x
  2. Step 2: Convert to fraction form
    26,608.40/39,919.53 = 9,968.67/x
  3. Step 3: Cross multiply
    26,608.40x = 39,919.53 × 9,968.67
  4. Step 4: Simplify right side
    26,608.40x = 397,944,658.51
  5. Step 5: Solve for x
    x = 397,944,658.51/26,608.40
  6. Step 6: Final answer
    x = 14,955.60

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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.