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Finding the Fourth Proportional to 55,005, 75,908.52 and 29,856.12

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Solution

The fourth proportional to 55,005, 75,908.52 and 29,856.12 is: 41,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,005 : 75,908.52 = 29,856.12 : x
  2. Step 2: Convert to fraction form
    55,005/75,908.52 = 29,856.12/x
  3. Step 3: Cross multiply
    55,005x = 75,908.52 × 29,856.12
  4. Step 4: Simplify right side
    55,005x = 2,266,333,882.14
  5. Step 5: Solve for x
    x = 2,266,333,882.14/55,005
  6. Step 6: Final answer
    x = 41,202.32

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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.