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Finding the Fourth Proportional to 56,632, 84,948.72 and 19,696

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Solution

The fourth proportional to 56,632, 84,948.72 and 19,696 is: 29,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,632 : 84,948.72 = 19,696 : x
  2. Step 2: Convert to fraction form
    56,632/84,948.72 = 19,696/x
  3. Step 3: Cross multiply
    56,632x = 84,948.72 × 19,696
  4. Step 4: Simplify right side
    56,632x = 1,673,149,989.12
  5. Step 5: Solve for x
    x = 1,673,149,989.12/56,632
  6. Step 6: Final answer
    x = 29,544.25

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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.