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Finding the Fourth Proportional to 29,687.81, 40,969.17 and 16,259.04

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Solution

The fourth proportional to 29,687.81, 40,969.17 and 16,259.04 is: 22,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,687.81 : 40,969.17 = 16,259.04 : x
  2. Step 2: Convert to fraction form
    29,687.81/40,969.17 = 16,259.04/x
  3. Step 3: Cross multiply
    29,687.81x = 40,969.17 × 16,259.04
  4. Step 4: Simplify right side
    29,687.81x = 666,119,373.80
  5. Step 5: Solve for x
    x = 666,119,373.80/29,687.81
  6. Step 6: Final answer
    x = 22,437.47

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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.