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Finding the Fourth Proportional to 52,992.74, 79,476.76 and 19,728.48

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Solution

The fourth proportional to 52,992.74, 79,476.76 and 19,728.48 is: 29,588.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,992.74 : 79,476.76 = 19,728.48 : x
  2. Step 2: Convert to fraction form
    52,992.74/79,476.76 = 19,728.48/x
  3. Step 3: Cross multiply
    52,992.74x = 79,476.76 × 19,728.48
  4. Step 4: Simplify right side
    52,992.74x = 1,567,955,670.12
  5. Step 5: Solve for x
    x = 1,567,955,670.12/52,992.74
  6. Step 6: Final answer
    x = 29,588.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.