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Finding the Fourth Proportional to 35,256.40, 52,891.80 and 11,885.20

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Solution

The fourth proportional to 35,256.40, 52,891.80 and 11,885.20 is: 17,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,256.40 : 52,891.80 = 11,885.20 : x
  2. Step 2: Convert to fraction form
    35,256.40/52,891.80 = 11,885.20/x
  3. Step 3: Cross multiply
    35,256.40x = 52,891.80 × 11,885.20
  4. Step 4: Simplify right side
    35,256.40x = 628,629,621.36
  5. Step 5: Solve for x
    x = 628,629,621.36/35,256.40
  6. Step 6: Final answer
    x = 17,830.23

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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.