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Finding the Fourth Proportional to 26,483.46, 39,731.88 and 12,440.88

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Solution

The fourth proportional to 26,483.46, 39,731.88 and 12,440.88 is: 18,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,483.46 : 39,731.88 = 12,440.88 : x
  2. Step 2: Convert to fraction form
    26,483.46/39,731.88 = 12,440.88/x
  3. Step 3: Cross multiply
    26,483.46x = 39,731.88 × 12,440.88
  4. Step 4: Simplify right side
    26,483.46x = 494,299,551.25
  5. Step 5: Solve for x
    x = 494,299,551.25/26,483.46
  6. Step 6: Final answer
    x = 18,664.46

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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.