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Finding the Fourth Proportional to 73,262.10, 101,102.34 and 39,728.10

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Solution

The fourth proportional to 73,262.10, 101,102.34 and 39,728.10 is: 54,825.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,262.10 : 101,102.34 = 39,728.10 : x
  2. Step 2: Convert to fraction form
    73,262.10/101,102.34 = 39,728.10/x
  3. Step 3: Cross multiply
    73,262.10x = 101,102.34 × 39,728.10
  4. Step 4: Simplify right side
    73,262.10x = 4,016,603,873.75
  5. Step 5: Solve for x
    x = 4,016,603,873.75/73,262.10
  6. Step 6: Final answer
    x = 54,825.13

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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.