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Finding the Fourth Proportional to 52,775.26, 72,829.28 and 28,900.50

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Solution

The fourth proportional to 52,775.26, 72,829.28 and 28,900.50 is: 39,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,775.26 : 72,829.28 = 28,900.50 : x
  2. Step 2: Convert to fraction form
    52,775.26/72,829.28 = 28,900.50/x
  3. Step 3: Cross multiply
    52,775.26x = 72,829.28 × 28,900.50
  4. Step 4: Simplify right side
    52,775.26x = 2,104,802,606.64
  5. Step 5: Solve for x
    x = 2,104,802,606.64/52,775.26
  6. Step 6: Final answer
    x = 39,882.37

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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.