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Finding the Fourth Proportional to 37,777.66, 52,129.95 and 21,863.09

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Solution

The fourth proportional to 37,777.66, 52,129.95 and 21,863.09 is: 30,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,777.66 : 52,129.95 = 21,863.09 : x
  2. Step 2: Convert to fraction form
    37,777.66/52,129.95 = 21,863.09/x
  3. Step 3: Cross multiply
    37,777.66x = 52,129.95 × 21,863.09
  4. Step 4: Simplify right side
    37,777.66x = 1,139,721,788.55
  5. Step 5: Solve for x
    x = 1,139,721,788.55/37,777.66
  6. Step 6: Final answer
    x = 30,169.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.