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Finding the Fourth Proportional to 60,783.76, 91,184.74 and 21,333.92

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Solution

The fourth proportional to 60,783.76, 91,184.74 and 21,333.92 is: 32,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,783.76 : 91,184.74 = 21,333.92 : x
  2. Step 2: Convert to fraction form
    60,783.76/91,184.74 = 21,333.92/x
  3. Step 3: Cross multiply
    60,783.76x = 91,184.74 × 21,333.92
  4. Step 4: Simplify right side
    60,783.76x = 1,945,327,948.38
  5. Step 5: Solve for x
    x = 1,945,327,948.38/60,783.76
  6. Step 6: Final answer
    x = 32,004.07

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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.