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Finding the Fourth Proportional to 69,391.56, 95,710.96 and 47,889.52

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Solution

The fourth proportional to 69,391.56, 95,710.96 and 47,889.52 is: 66,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,391.56 : 95,710.96 = 47,889.52 : x
  2. Step 2: Convert to fraction form
    69,391.56/95,710.96 = 47,889.52/x
  3. Step 3: Cross multiply
    69,391.56x = 95,710.96 × 47,889.52
  4. Step 4: Simplify right side
    69,391.56x = 4,583,551,933.14
  5. Step 5: Solve for x
    x = 4,583,551,933.14/69,391.56
  6. Step 6: Final answer
    x = 66,053.45

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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.