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Finding the Fourth Proportional to 22,090.40, 33,146.40 and 10,401.60

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Solution

The fourth proportional to 22,090.40, 33,146.40 and 10,401.60 is: 15,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,090.40 : 33,146.40 = 10,401.60 : x
  2. Step 2: Convert to fraction form
    22,090.40/33,146.40 = 10,401.60/x
  3. Step 3: Cross multiply
    22,090.40x = 33,146.40 × 10,401.60
  4. Step 4: Simplify right side
    22,090.40x = 344,775,594.24
  5. Step 5: Solve for x
    x = 344,775,594.24/22,090.40
  6. Step 6: Final answer
    x = 15,607.49

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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.