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Finding the Fourth Proportional to 62,718.96, 94,081.32 and 21,166.32

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Solution

The fourth proportional to 62,718.96, 94,081.32 and 21,166.32 is: 31,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,718.96 : 94,081.32 = 21,166.32 : x
  2. Step 2: Convert to fraction form
    62,718.96/94,081.32 = 21,166.32/x
  3. Step 3: Cross multiply
    62,718.96x = 94,081.32 × 21,166.32
  4. Step 4: Simplify right side
    62,718.96x = 1,991,355,325.14
  5. Step 5: Solve for x
    x = 1,991,355,325.14/62,718.96
  6. Step 6: Final answer
    x = 31,750.45

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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.