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Finding the Fourth Proportional to 21,664.54, 32,501.67 and 6,873.94

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Solution

The fourth proportional to 21,664.54, 32,501.67 and 6,873.94 is: 10,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.54 : 32,501.67 = 6,873.94 : x
  2. Step 2: Convert to fraction form
    21,664.54/32,501.67 = 6,873.94/x
  3. Step 3: Cross multiply
    21,664.54x = 32,501.67 × 6,873.94
  4. Step 4: Simplify right side
    21,664.54x = 223,414,332.60
  5. Step 5: Solve for x
    x = 223,414,332.60/21,664.54
  6. Step 6: Final answer
    x = 10,312.45

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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.