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Finding the Fourth Proportional to 52,243.63, 78,365.48 and 18,963.63

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Solution

The fourth proportional to 52,243.63, 78,365.48 and 18,963.63 is: 28,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,243.63 : 78,365.48 = 18,963.63 : x
  2. Step 2: Convert to fraction form
    52,243.63/78,365.48 = 18,963.63/x
  3. Step 3: Cross multiply
    52,243.63x = 78,365.48 × 18,963.63
  4. Step 4: Simplify right side
    52,243.63x = 1,486,093,872.67
  5. Step 5: Solve for x
    x = 1,486,093,872.67/52,243.63
  6. Step 6: Final answer
    x = 28,445.46

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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.