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Finding the Fourth Proportional to 42,310.69, 63,495.19 and 14,608.69

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Solution

The fourth proportional to 42,310.69, 63,495.19 and 14,608.69 is: 21,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,310.69 : 63,495.19 = 14,608.69 : x
  2. Step 2: Convert to fraction form
    42,310.69/63,495.19 = 14,608.69/x
  3. Step 3: Cross multiply
    42,310.69x = 63,495.19 × 14,608.69
  4. Step 4: Simplify right side
    42,310.69x = 927,581,406.72
  5. Step 5: Solve for x
    x = 927,581,406.72/42,310.69
  6. Step 6: Final answer
    x = 21,923.10

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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.