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Finding the Fourth Proportional to 59,869.13, 89,806.42 and 19,345.84

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Solution

The fourth proportional to 59,869.13, 89,806.42 and 19,345.84 is: 29,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,869.13 : 89,806.42 = 19,345.84 : x
  2. Step 2: Convert to fraction form
    59,869.13/89,806.42 = 19,345.84/x
  3. Step 3: Cross multiply
    59,869.13x = 89,806.42 × 19,345.84
  4. Step 4: Simplify right side
    59,869.13x = 1,737,380,431.96
  5. Step 5: Solve for x
    x = 1,737,380,431.96/59,869.13
  6. Step 6: Final answer
    x = 29,019.64

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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.