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Finding the Fourth Proportional to 35,358.02, 48,780.24 and 20,242.58

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Solution

The fourth proportional to 35,358.02, 48,780.24 and 20,242.58 is: 27,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,358.02 : 48,780.24 = 20,242.58 : x
  2. Step 2: Convert to fraction form
    35,358.02/48,780.24 = 20,242.58/x
  3. Step 3: Cross multiply
    35,358.02x = 48,780.24 × 20,242.58
  4. Step 4: Simplify right side
    35,358.02x = 987,438,030.86
  5. Step 5: Solve for x
    x = 987,438,030.86/35,358.02
  6. Step 6: Final answer
    x = 27,926.85

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