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Finding the Fourth Proportional to 42,410.88, 63,606.60 and 19,044

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Solution

The fourth proportional to 42,410.88, 63,606.60 and 19,044 is: 28,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,410.88 : 63,606.60 = 19,044 : x
  2. Step 2: Convert to fraction form
    42,410.88/63,606.60 = 19,044/x
  3. Step 3: Cross multiply
    42,410.88x = 63,606.60 × 19,044
  4. Step 4: Simplify right side
    42,410.88x = 1,211,324,090.40
  5. Step 5: Solve for x
    x = 1,211,324,090.40/42,410.88
  6. Step 6: Final answer
    x = 28,561.64

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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.