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Finding the Fourth Proportional to 69,662.48, 96,133.32 and 39,860.24

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Solution

The fourth proportional to 69,662.48, 96,133.32 and 39,860.24 is: 55,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,662.48 : 96,133.32 = 39,860.24 : x
  2. Step 2: Convert to fraction form
    69,662.48/96,133.32 = 39,860.24/x
  3. Step 3: Cross multiply
    69,662.48x = 96,133.32 × 39,860.24
  4. Step 4: Simplify right side
    69,662.48x = 3,831,897,207.20
  5. Step 5: Solve for x
    x = 3,831,897,207.20/69,662.48
  6. Step 6: Final answer
    x = 55,006.61

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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.