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Finding the Fourth Proportional to 60,516.34, 90,745.71 and 21,068.62

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Solution

The fourth proportional to 60,516.34, 90,745.71 and 21,068.62 is: 31,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,516.34 : 90,745.71 = 21,068.62 : x
  2. Step 2: Convert to fraction form
    60,516.34/90,745.71 = 21,068.62/x
  3. Step 3: Cross multiply
    60,516.34x = 90,745.71 × 21,068.62
  4. Step 4: Simplify right side
    60,516.34x = 1,911,886,880.62
  5. Step 5: Solve for x
    x = 1,911,886,880.62/60,516.34
  6. Step 6: Final answer
    x = 31,592.90

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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.