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Finding the Fourth Proportional to 52,504, 78,792.48 and 21,339.28

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Solution

The fourth proportional to 52,504, 78,792.48 and 21,339.28 is: 32,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,504 : 78,792.48 = 21,339.28 : x
  2. Step 2: Convert to fraction form
    52,504/78,792.48 = 21,339.28/x
  3. Step 3: Cross multiply
    52,504x = 78,792.48 × 21,339.28
  4. Step 4: Simplify right side
    52,504x = 1,681,374,792.61
  5. Step 5: Solve for x
    x = 1,681,374,792.61/52,504
  6. Step 6: Final answer
    x = 32,023.75

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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.