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Finding the Fourth Proportional to 56,496.40, 84,744.60 and 14,376.40

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Solution

The fourth proportional to 56,496.40, 84,744.60 and 14,376.40 is: 21,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496.40 : 84,744.60 = 14,376.40 : x
  2. Step 2: Convert to fraction form
    56,496.40/84,744.60 = 14,376.40/x
  3. Step 3: Cross multiply
    56,496.40x = 84,744.60 × 14,376.40
  4. Step 4: Simplify right side
    56,496.40x = 1,218,322,267.44
  5. Step 5: Solve for x
    x = 1,218,322,267.44/56,496.40
  6. Step 6: Final answer
    x = 21,564.60

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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.