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Finding the Fourth Proportional to 69,157.81, 95,436.82 and 38,946.08

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Solution

The fourth proportional to 69,157.81, 95,436.82 and 38,946.08 is: 53,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,157.81 : 95,436.82 = 38,946.08 : x
  2. Step 2: Convert to fraction form
    69,157.81/95,436.82 = 38,946.08/x
  3. Step 3: Cross multiply
    69,157.81x = 95,436.82 × 38,946.08
  4. Step 4: Simplify right side
    69,157.81x = 3,716,890,026.67
  5. Step 5: Solve for x
    x = 3,716,890,026.67/69,157.81
  6. Step 6: Final answer
    x = 53,745.05

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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.