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Finding the Fourth Proportional to 68,750.76, 94,879.78 and 38,545.76

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Solution

The fourth proportional to 68,750.76, 94,879.78 and 38,545.76 is: 53,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,750.76 : 94,879.78 = 38,545.76 : x
  2. Step 2: Convert to fraction form
    68,750.76/94,879.78 = 38,545.76/x
  3. Step 3: Cross multiply
    68,750.76x = 94,879.78 × 38,545.76
  4. Step 4: Simplify right side
    68,750.76x = 3,657,213,228.73
  5. Step 5: Solve for x
    x = 3,657,213,228.73/68,750.76
  6. Step 6: Final answer
    x = 53,195.24

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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.