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Finding the Fourth Proportional to 52,811.28, 79,230.12 and 37,259.28

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Solution

The fourth proportional to 52,811.28, 79,230.12 and 37,259.28 is: 55,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.28 : 79,230.12 = 37,259.28 : x
  2. Step 2: Convert to fraction form
    52,811.28/79,230.12 = 37,259.28/x
  3. Step 3: Cross multiply
    52,811.28x = 79,230.12 × 37,259.28
  4. Step 4: Simplify right side
    52,811.28x = 2,952,057,225.51
  5. Step 5: Solve for x
    x = 2,952,057,225.51/52,811.28
  6. Step 6: Final answer
    x = 55,898.23

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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.