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Finding the Fourth Proportional to 54,805.65, 75,631.77 and 29,655.15

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Solution

The fourth proportional to 54,805.65, 75,631.77 and 29,655.15 is: 40,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,805.65 : 75,631.77 = 29,655.15 : x
  2. Step 2: Convert to fraction form
    54,805.65/75,631.77 = 29,655.15/x
  3. Step 3: Cross multiply
    54,805.65x = 75,631.77 × 29,655.15
  4. Step 4: Simplify right side
    54,805.65x = 2,242,871,484.12
  5. Step 5: Solve for x
    x = 2,242,871,484.12/54,805.65
  6. Step 6: Final answer
    x = 40,924.09

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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.