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Finding the Fourth Proportional to 26,759.76, 36,929.28 and 14,824.21

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Solution

The fourth proportional to 26,759.76, 36,929.28 and 14,824.21 is: 20,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,759.76 : 36,929.28 = 14,824.21 : x
  2. Step 2: Convert to fraction form
    26,759.76/36,929.28 = 14,824.21/x
  3. Step 3: Cross multiply
    26,759.76x = 36,929.28 × 14,824.21
  4. Step 4: Simplify right side
    26,759.76x = 547,447,401.87
  5. Step 5: Solve for x
    x = 547,447,401.87/26,759.76
  6. Step 6: Final answer
    x = 20,457.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.