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Finding the Fourth Proportional to 56,408.64, 84,595.92 and 16,955.28

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Solution

The fourth proportional to 56,408.64, 84,595.92 and 16,955.28 is: 25,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.64 : 84,595.92 = 16,955.28 : x
  2. Step 2: Convert to fraction form
    56,408.64/84,595.92 = 16,955.28/x
  3. Step 3: Cross multiply
    56,408.64x = 84,595.92 × 16,955.28
  4. Step 4: Simplify right side
    56,408.64x = 1,434,347,510.46
  5. Step 5: Solve for x
    x = 1,434,347,510.46/56,408.64
  6. Step 6: Final answer
    x = 25,427.80

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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.