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Finding the Fourth Proportional to 69,684.48, 104,448.92 and 30,182.40

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Solution

The fourth proportional to 69,684.48, 104,448.92 and 30,182.40 is: 45,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,684.48 : 104,448.92 = 30,182.40 : x
  2. Step 2: Convert to fraction form
    69,684.48/104,448.92 = 30,182.40/x
  3. Step 3: Cross multiply
    69,684.48x = 104,448.92 × 30,182.40
  4. Step 4: Simplify right side
    69,684.48x = 3,152,519,083.01
  5. Step 5: Solve for x
    x = 3,152,519,083.01/69,684.48
  6. Step 6: Final answer
    x = 45,239.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.