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Finding the Fourth Proportional to 61,058.59, 91,600.94 and 18,937.74

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Solution

The fourth proportional to 61,058.59, 91,600.94 and 18,937.74 is: 28,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,058.59 : 91,600.94 = 18,937.74 : x
  2. Step 2: Convert to fraction form
    61,058.59/91,600.94 = 18,937.74/x
  3. Step 3: Cross multiply
    61,058.59x = 91,600.94 × 18,937.74
  4. Step 4: Simplify right side
    61,058.59x = 1,734,715,176.32
  5. Step 5: Solve for x
    x = 1,734,715,176.32/61,058.59
  6. Step 6: Final answer
    x = 28,410.67

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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.