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Finding the Fourth Proportional to 69,603.39, 96,052.63 and 39,388.16

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Solution

The fourth proportional to 69,603.39, 96,052.63 and 39,388.16 is: 54,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,603.39 : 96,052.63 = 39,388.16 : x
  2. Step 2: Convert to fraction form
    69,603.39/96,052.63 = 39,388.16/x
  3. Step 3: Cross multiply
    69,603.39x = 96,052.63 × 39,388.16
  4. Step 4: Simplify right side
    69,603.39x = 3,783,336,500.52
  5. Step 5: Solve for x
    x = 3,783,336,500.52/69,603.39
  6. Step 6: Final answer
    x = 54,355.64

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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.