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Finding the Third Proportional to 55,413 and 74,263.50

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Solution

The third proportional to 55,413 and 74,263.50 is: 99,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413 : 74,263.50 = 74,263.50 : x
  2. Step 2: Convert to fraction form
    55,413/74,263.50 = 74,263.50/x
  3. Step 3: Cross multiply
    55,413x = 74,263.50 × 74,263.50
  4. Step 4: Simplify right side
    55,413x = 5,515,067,432.25
  5. Step 5: Solve for x
    x = 5,515,067,432.25/55,413
  6. Step 6: Final answer
    x = 99,526.60

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.