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Finding the Fourth Proportional to 35,493.95, 48,981.33 and 19,578.53

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Solution

The fourth proportional to 35,493.95, 48,981.33 and 19,578.53 is: 27,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,493.95 : 48,981.33 = 19,578.53 : x
  2. Step 2: Convert to fraction form
    35,493.95/48,981.33 = 19,578.53/x
  3. Step 3: Cross multiply
    35,493.95x = 48,981.33 × 19,578.53
  4. Step 4: Simplify right side
    35,493.95x = 958,982,438.84
  5. Step 5: Solve for x
    x = 958,982,438.84/35,493.95
  6. Step 6: Final answer
    x = 27,018.19

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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.