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Finding the Fourth Proportional to 93,015.34, 128,361 and 50,573.77

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Solution

The fourth proportional to 93,015.34, 128,361 and 50,573.77 is: 69,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,015.34 : 128,361 = 50,573.77 : x
  2. Step 2: Convert to fraction form
    93,015.34/128,361 = 50,573.77/x
  3. Step 3: Cross multiply
    93,015.34x = 128,361 × 50,573.77
  4. Step 4: Simplify right side
    93,015.34x = 6,491,699,690.97
  5. Step 5: Solve for x
    x = 6,491,699,690.97/93,015.34
  6. Step 6: Final answer
    x = 69,791.71

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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.