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Finding the Fourth Proportional to 59,992.72, 89,973.40 and 17,861.40

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Solution

The fourth proportional to 59,992.72, 89,973.40 and 17,861.40 is: 26,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,992.72 : 89,973.40 = 17,861.40 : x
  2. Step 2: Convert to fraction form
    59,992.72/89,973.40 = 17,861.40/x
  3. Step 3: Cross multiply
    59,992.72x = 89,973.40 × 17,861.40
  4. Step 4: Simplify right side
    59,992.72x = 1,607,050,886.76
  5. Step 5: Solve for x
    x = 1,607,050,886.76/59,992.72
  6. Step 6: Final answer
    x = 26,787.43

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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.