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Finding the Fourth Proportional to 17,892.40, 26,860.20 and 17,762.80

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Solution

The fourth proportional to 17,892.40, 26,860.20 and 17,762.80 is: 26,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,892.40 : 26,860.20 = 17,762.80 : x
  2. Step 2: Convert to fraction form
    17,892.40/26,860.20 = 17,762.80/x
  3. Step 3: Cross multiply
    17,892.40x = 26,860.20 × 17,762.80
  4. Step 4: Simplify right side
    17,892.40x = 477,112,360.56
  5. Step 5: Solve for x
    x = 477,112,360.56/17,892.40
  6. Step 6: Final answer
    x = 26,665.64

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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.