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Finding the Fourth Proportional to 61,536.64, 92,292.80 and 28,247.68

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Solution

The fourth proportional to 61,536.64, 92,292.80 and 28,247.68 is: 42,365.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,536.64 : 92,292.80 = 28,247.68 : x
  2. Step 2: Convert to fraction form
    61,536.64/92,292.80 = 28,247.68/x
  3. Step 3: Cross multiply
    61,536.64x = 92,292.80 × 28,247.68
  4. Step 4: Simplify right side
    61,536.64x = 2,607,057,480.70
  5. Step 5: Solve for x
    x = 2,607,057,480.70/61,536.64
  6. Step 6: Final answer
    x = 42,365.94

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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.