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Finding the Fourth Proportional to 69,603.54, 96,051.52 and 39,388.30

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Solution

The fourth proportional to 69,603.54, 96,051.52 and 39,388.30 is: 54,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,603.54 : 96,051.52 = 39,388.30 : x
  2. Step 2: Convert to fraction form
    69,603.54/96,051.52 = 39,388.30/x
  3. Step 3: Cross multiply
    69,603.54x = 96,051.52 × 39,388.30
  4. Step 4: Simplify right side
    69,603.54x = 3,783,306,085.22
  5. Step 5: Solve for x
    x = 3,783,306,085.22/69,603.54
  6. Step 6: Final answer
    x = 54,355.08

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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.