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Finding the Fourth Proportional to 59,138.52, 88,707.87 and 19,698.72

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Solution

The fourth proportional to 59,138.52, 88,707.87 and 19,698.72 is: 29,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,138.52 : 88,707.87 = 19,698.72 : x
  2. Step 2: Convert to fraction form
    59,138.52/88,707.87 = 19,698.72/x
  3. Step 3: Cross multiply
    59,138.52x = 88,707.87 × 19,698.72
  4. Step 4: Simplify right side
    59,138.52x = 1,747,431,492.93
  5. Step 5: Solve for x
    x = 1,747,431,492.93/59,138.52
  6. Step 6: Final answer
    x = 29,548.11

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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.