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Finding the Fourth Proportional to 69,283.94, 95,611.13 and 38,657.30

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Solution

The fourth proportional to 69,283.94, 95,611.13 and 38,657.30 is: 53,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,283.94 : 95,611.13 = 38,657.30 : x
  2. Step 2: Convert to fraction form
    69,283.94/95,611.13 = 38,657.30/x
  3. Step 3: Cross multiply
    69,283.94x = 95,611.13 × 38,657.30
  4. Step 4: Simplify right side
    69,283.94x = 3,696,068,135.75
  5. Step 5: Solve for x
    x = 3,696,068,135.75/69,283.94
  6. Step 6: Final answer
    x = 53,346.68

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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.