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Finding the Fourth Proportional to 35,615.60, 53,420.88 and 12,241.52

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Solution

The fourth proportional to 35,615.60, 53,420.88 and 12,241.52 is: 18,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,615.60 : 53,420.88 = 12,241.52 : x
  2. Step 2: Convert to fraction form
    35,615.60/53,420.88 = 12,241.52/x
  3. Step 3: Cross multiply
    35,615.60x = 53,420.88 × 12,241.52
  4. Step 4: Simplify right side
    35,615.60x = 653,952,770.94
  5. Step 5: Solve for x
    x = 653,952,770.94/35,615.60
  6. Step 6: Final answer
    x = 18,361.41

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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.