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Finding the Fourth Proportional to 69,997.06, 96,643.50 and 53,835.76

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Solution

The fourth proportional to 69,997.06, 96,643.50 and 53,835.76 is: 74,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,997.06 : 96,643.50 = 53,835.76 : x
  2. Step 2: Convert to fraction form
    69,997.06/96,643.50 = 53,835.76/x
  3. Step 3: Cross multiply
    69,997.06x = 96,643.50 × 53,835.76
  4. Step 4: Simplify right side
    69,997.06x = 5,202,876,271.56
  5. Step 5: Solve for x
    x = 5,202,876,271.56/69,997.06
  6. Step 6: Final answer
    x = 74,329.93

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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.