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Finding the Fourth Proportional to 35,394.81, 48,845.07 and 19,478.85

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Solution

The fourth proportional to 35,394.81, 48,845.07 and 19,478.85 is: 26,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,394.81 : 48,845.07 = 19,478.85 : x
  2. Step 2: Convert to fraction form
    35,394.81/48,845.07 = 19,478.85/x
  3. Step 3: Cross multiply
    35,394.81x = 48,845.07 × 19,478.85
  4. Step 4: Simplify right side
    35,394.81x = 951,445,791.77
  5. Step 5: Solve for x
    x = 951,445,791.77/35,394.81
  6. Step 6: Final answer
    x = 26,880.94

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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.