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Finding the Fourth Proportional to 35,273.96, 48,700.87 and 21,859.45

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Solution

The fourth proportional to 35,273.96, 48,700.87 and 21,859.45 is: 30,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,273.96 : 48,700.87 = 21,859.45 : x
  2. Step 2: Convert to fraction form
    35,273.96/48,700.87 = 21,859.45/x
  3. Step 3: Cross multiply
    35,273.96x = 48,700.87 × 21,859.45
  4. Step 4: Simplify right side
    35,273.96x = 1,064,574,391.74
  5. Step 5: Solve for x
    x = 1,064,574,391.74/35,273.96
  6. Step 6: Final answer
    x = 30,180.17

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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.