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Finding the Fourth Proportional to 63,120.95, 94,665.15 and 18,737.67

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Solution

The fourth proportional to 63,120.95, 94,665.15 and 18,737.67 is: 28,101.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,120.95 : 94,665.15 = 18,737.67 : x
  2. Step 2: Convert to fraction form
    63,120.95/94,665.15 = 18,737.67/x
  3. Step 3: Cross multiply
    63,120.95x = 94,665.15 × 18,737.67
  4. Step 4: Simplify right side
    63,120.95x = 1,773,804,341.20
  5. Step 5: Solve for x
    x = 1,773,804,341.20/63,120.95
  6. Step 6: Final answer
    x = 28,101.68

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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.