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Finding the Fourth Proportional to 26,674.90, 40,008.15 and 16,783.90

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Solution

The fourth proportional to 26,674.90, 40,008.15 and 16,783.90 is: 25,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,674.90 : 40,008.15 = 16,783.90 : x
  2. Step 2: Convert to fraction form
    26,674.90/40,008.15 = 16,783.90/x
  3. Step 3: Cross multiply
    26,674.90x = 40,008.15 × 16,783.90
  4. Step 4: Simplify right side
    26,674.90x = 671,492,788.79
  5. Step 5: Solve for x
    x = 671,492,788.79/26,674.90
  6. Step 6: Final answer
    x = 25,173.21

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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.