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Finding the Fourth Proportional to 52,656.51, 79,015.98 and 19,399.91

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Solution

The fourth proportional to 52,656.51, 79,015.98 and 19,399.91 is: 29,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,656.51 : 79,015.98 = 19,399.91 : x
  2. Step 2: Convert to fraction form
    52,656.51/79,015.98 = 19,399.91/x
  3. Step 3: Cross multiply
    52,656.51x = 79,015.98 × 19,399.91
  4. Step 4: Simplify right side
    52,656.51x = 1,532,903,190.37
  5. Step 5: Solve for x
    x = 1,532,903,190.37/52,656.51
  6. Step 6: Final answer
    x = 29,111.37

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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.