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Finding the Fourth Proportional to 60,551.00, 90,815.76 and 18,420.87

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Solution

The fourth proportional to 60,551.00, 90,815.76 and 18,420.87 is: 27,628.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,551.00 : 90,815.76 = 18,420.87 : x
  2. Step 2: Convert to fraction form
    60,551.00/90,815.76 = 18,420.87/x
  3. Step 3: Cross multiply
    60,551.00x = 90,815.76 × 18,420.87
  4. Step 4: Simplify right side
    60,551.00x = 1,672,905,308.91
  5. Step 5: Solve for x
    x = 1,672,905,308.91/60,551.00
  6. Step 6: Final answer
    x = 27,628.04

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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.