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Finding the Fourth Proportional to 35,892.41, 53,860.39 and 13,419.45

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Solution

The fourth proportional to 35,892.41, 53,860.39 and 13,419.45 is: 20,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,892.41 : 53,860.39 = 13,419.45 : x
  2. Step 2: Convert to fraction form
    35,892.41/53,860.39 = 13,419.45/x
  3. Step 3: Cross multiply
    35,892.41x = 53,860.39 × 13,419.45
  4. Step 4: Simplify right side
    35,892.41x = 722,776,777.04
  5. Step 5: Solve for x
    x = 722,776,777.04/35,892.41
  6. Step 6: Final answer
    x = 20,137.32

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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.