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Finding the Fourth Proportional to 59,808.90, 89,715.46 and 31,690.96

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Solution

The fourth proportional to 59,808.90, 89,715.46 and 31,690.96 is: 47,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,808.90 : 89,715.46 = 31,690.96 : x
  2. Step 2: Convert to fraction form
    59,808.90/89,715.46 = 31,690.96/x
  3. Step 3: Cross multiply
    59,808.90x = 89,715.46 × 31,690.96
  4. Step 4: Simplify right side
    59,808.90x = 2,843,169,054.24
  5. Step 5: Solve for x
    x = 2,843,169,054.24/59,808.90
  6. Step 6: Final answer
    x = 47,537.56

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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.