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Finding the Fourth Proportional to 31,752.95, 43,837.00 and 21,695.99

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Solution

The fourth proportional to 31,752.95, 43,837.00 and 21,695.99 is: 29,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752.95 : 43,837.00 = 21,695.99 : x
  2. Step 2: Convert to fraction form
    31,752.95/43,837.00 = 21,695.99/x
  3. Step 3: Cross multiply
    31,752.95x = 43,837.00 × 21,695.99
  4. Step 4: Simplify right side
    31,752.95x = 951,086,840.21
  5. Step 5: Solve for x
    x = 951,086,840.21/31,752.95
  6. Step 6: Final answer
    x = 29,952.71

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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.