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Finding the Fourth Proportional to 52,624.32, 78,936.48 and 21,454.08

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Solution

The fourth proportional to 52,624.32, 78,936.48 and 21,454.08 is: 32,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,624.32 : 78,936.48 = 21,454.08 : x
  2. Step 2: Convert to fraction form
    52,624.32/78,936.48 = 21,454.08/x
  3. Step 3: Cross multiply
    52,624.32x = 78,936.48 × 21,454.08
  4. Step 4: Simplify right side
    52,624.32x = 1,693,509,556.84
  5. Step 5: Solve for x
    x = 1,693,509,556.84/52,624.32
  6. Step 6: Final answer
    x = 32,181.12

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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.