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Finding the Fourth Proportional to 61,054.92, 91,582.38 and 19,505.16

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Solution

The fourth proportional to 61,054.92, 91,582.38 and 19,505.16 is: 29,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,054.92 : 91,582.38 = 19,505.16 : x
  2. Step 2: Convert to fraction form
    61,054.92/91,582.38 = 19,505.16/x
  3. Step 3: Cross multiply
    61,054.92x = 91,582.38 × 19,505.16
  4. Step 4: Simplify right side
    61,054.92x = 1,786,328,975.08
  5. Step 5: Solve for x
    x = 1,786,328,975.08/61,054.92
  6. Step 6: Final answer
    x = 29,257.74

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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.