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Finding the Fourth Proportional to 12,503.41, 18,755.12 and 5,010.39

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Solution

The fourth proportional to 12,503.41, 18,755.12 and 5,010.39 is: 7,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.41 : 18,755.12 = 5,010.39 : x
  2. Step 2: Convert to fraction form
    12,503.41/18,755.12 = 5,010.39/x
  3. Step 3: Cross multiply
    12,503.41x = 18,755.12 × 5,010.39
  4. Step 4: Simplify right side
    12,503.41x = 93,970,543.25
  5. Step 5: Solve for x
    x = 93,970,543.25/12,503.41
  6. Step 6: Final answer
    x = 7,515.59

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1.5x scale

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.