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Finding the Fourth Proportional to 56,272.50, 84,408.75 and 19,336.50

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Solution

The fourth proportional to 56,272.50, 84,408.75 and 19,336.50 is: 29,004.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,272.50 : 84,408.75 = 19,336.50 : x
  2. Step 2: Convert to fraction form
    56,272.50/84,408.75 = 19,336.50/x
  3. Step 3: Cross multiply
    56,272.50x = 84,408.75 × 19,336.50
  4. Step 4: Simplify right side
    56,272.50x = 1,632,169,794.38
  5. Step 5: Solve for x
    x = 1,632,169,794.38/56,272.50
  6. Step 6: Final answer
    x = 29,004.75

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1.5x scale

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.