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Finding the Fourth Proportional to 29,437.31, 40,623.49 and 16,862.87

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Solution

The fourth proportional to 29,437.31, 40,623.49 and 16,862.87 is: 23,270.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,437.31 : 40,623.49 = 16,862.87 : x
  2. Step 2: Convert to fraction form
    29,437.31/40,623.49 = 16,862.87/x
  3. Step 3: Cross multiply
    29,437.31x = 40,623.49 × 16,862.87
  4. Step 4: Simplify right side
    29,437.31x = 685,028,753.45
  5. Step 5: Solve for x
    x = 685,028,753.45/29,437.31
  6. Step 6: Final answer
    x = 23,270.76

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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.