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Finding the Fourth Proportional to 45,358.84, 68,023.12 and 19,058.68

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Solution

The fourth proportional to 45,358.84, 68,023.12 and 19,058.68 is: 28,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,358.84 : 68,023.12 = 19,058.68 : x
  2. Step 2: Convert to fraction form
    45,358.84/68,023.12 = 19,058.68/x
  3. Step 3: Cross multiply
    45,358.84x = 68,023.12 × 19,058.68
  4. Step 4: Simplify right side
    45,358.84x = 1,296,430,876.68
  5. Step 5: Solve for x
    x = 1,296,430,876.68/45,358.84
  6. Step 6: Final answer
    x = 28,581.66

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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.