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Finding the Fourth Proportional to 35,396.60, 48,830.24 and 21,983.45

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Solution

The fourth proportional to 35,396.60, 48,830.24 and 21,983.45 is: 30,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,396.60 : 48,830.24 = 21,983.45 : x
  2. Step 2: Convert to fraction form
    35,396.60/48,830.24 = 21,983.45/x
  3. Step 3: Cross multiply
    35,396.60x = 48,830.24 × 21,983.45
  4. Step 4: Simplify right side
    35,396.60x = 1,073,457,225.01
  5. Step 5: Solve for x
    x = 1,073,457,225.01/35,396.60
  6. Step 6: Final answer
    x = 30,326.57

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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.