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Finding the Fourth Proportional to 26,608.77, 39,913.20 and 9,970.56

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Solution

The fourth proportional to 26,608.77, 39,913.20 and 9,970.56 is: 14,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.77 : 39,913.20 = 9,970.56 : x
  2. Step 2: Convert to fraction form
    26,608.77/39,913.20 = 9,970.56/x
  3. Step 3: Cross multiply
    26,608.77x = 39,913.20 × 9,970.56
  4. Step 4: Simplify right side
    26,608.77x = 397,956,955.39
  5. Step 5: Solve for x
    x = 397,956,955.39/26,608.77
  6. Step 6: Final answer
    x = 14,955.86

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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.