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Finding the Fourth Proportional to 52,966.64, 79,448.93 and 21,375.86

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Solution

The fourth proportional to 52,966.64, 79,448.93 and 21,375.86 is: 32,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,966.64 : 79,448.93 = 21,375.86 : x
  2. Step 2: Convert to fraction form
    52,966.64/79,448.93 = 21,375.86/x
  3. Step 3: Cross multiply
    52,966.64x = 79,448.93 × 21,375.86
  4. Step 4: Simplify right side
    52,966.64x = 1,698,289,204.83
  5. Step 5: Solve for x
    x = 1,698,289,204.83/52,966.64
  6. Step 6: Final answer
    x = 32,063.37

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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.