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Finding the Fourth Proportional to 29,687.10, 40,969.17 and 16,259.10

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Solution

The fourth proportional to 29,687.10, 40,969.17 and 16,259.10 is: 22,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,687.10 : 40,969.17 = 16,259.10 : x
  2. Step 2: Convert to fraction form
    29,687.10/40,969.17 = 16,259.10/x
  3. Step 3: Cross multiply
    29,687.10x = 40,969.17 × 16,259.10
  4. Step 4: Simplify right side
    29,687.10x = 666,121,831.95
  5. Step 5: Solve for x
    x = 666,121,831.95/29,687.10
  6. Step 6: Final answer
    x = 22,438.09

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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.