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Finding the Fourth Proportional to 35,418.76, 48,878.96 and 19,503.79

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Solution

The fourth proportional to 35,418.76, 48,878.96 and 19,503.79 is: 26,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,418.76 : 48,878.96 = 19,503.79 : x
  2. Step 2: Convert to fraction form
    35,418.76/48,878.96 = 19,503.79/x
  3. Step 3: Cross multiply
    35,418.76x = 48,878.96 × 19,503.79
  4. Step 4: Simplify right side
    35,418.76x = 953,324,751.54
  5. Step 5: Solve for x
    x = 953,324,751.54/35,418.76
  6. Step 6: Final answer
    x = 26,915.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.