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Finding the Fourth Proportional to 68,580.76, 94,650.54 and 38,377.72

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Solution

The fourth proportional to 68,580.76, 94,650.54 and 38,377.72 is: 52,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,580.76 : 94,650.54 = 38,377.72 : x
  2. Step 2: Convert to fraction form
    68,580.76/94,650.54 = 38,377.72/x
  3. Step 3: Cross multiply
    68,580.76x = 94,650.54 × 38,377.72
  4. Step 4: Simplify right side
    68,580.76x = 3,632,471,921.97
  5. Step 5: Solve for x
    x = 3,632,471,921.97/68,580.76
  6. Step 6: Final answer
    x = 52,966.34

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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.