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Finding the Fourth Proportional to 42,574.50, 63,918.27 and 36,374.34

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Solution

The fourth proportional to 42,574.50, 63,918.27 and 36,374.34 is: 54,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,574.50 : 63,918.27 = 36,374.34 : x
  2. Step 2: Convert to fraction form
    42,574.50/63,918.27 = 36,374.34/x
  3. Step 3: Cross multiply
    42,574.50x = 63,918.27 × 36,374.34
  4. Step 4: Simplify right side
    42,574.50x = 2,324,984,885.19
  5. Step 5: Solve for x
    x = 2,324,984,885.19/42,574.50
  6. Step 6: Final answer
    x = 54,609.80

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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.