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Finding the Fourth Proportional to 93,012.74, 128,362.83 and 50,570.36

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Solution

The fourth proportional to 93,012.74, 128,362.83 and 50,570.36 is: 69,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,012.74 : 128,362.83 = 50,570.36 : x
  2. Step 2: Convert to fraction form
    93,012.74/128,362.83 = 50,570.36/x
  3. Step 3: Cross multiply
    93,012.74x = 128,362.83 × 50,570.36
  4. Step 4: Simplify right side
    93,012.74x = 6,491,354,523.72
  5. Step 5: Solve for x
    x = 6,491,354,523.72/93,012.74
  6. Step 6: Final answer
    x = 69,789.95

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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.