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Finding the Fourth Proportional to 56,569.53, 78,048.36 and 32,687.49

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Solution

The fourth proportional to 56,569.53, 78,048.36 and 32,687.49 is: 45,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,569.53 : 78,048.36 = 32,687.49 : x
  2. Step 2: Convert to fraction form
    56,569.53/78,048.36 = 32,687.49/x
  3. Step 3: Cross multiply
    56,569.53x = 78,048.36 × 32,687.49
  4. Step 4: Simplify right side
    56,569.53x = 2,551,204,987.02
  5. Step 5: Solve for x
    x = 2,551,204,987.02/56,569.53
  6. Step 6: Final answer
    x = 45,098.57

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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.