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Finding the Fourth Proportional to 29,585.71, 40,829.94 and 16,158.21

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Solution

The fourth proportional to 29,585.71, 40,829.94 and 16,158.21 is: 22,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,585.71 : 40,829.94 = 16,158.21 : x
  2. Step 2: Convert to fraction form
    29,585.71/40,829.94 = 16,158.21/x
  3. Step 3: Cross multiply
    29,585.71x = 40,829.94 × 16,158.21
  4. Step 4: Simplify right side
    29,585.71x = 659,738,744.81
  5. Step 5: Solve for x
    x = 659,738,744.81/29,585.71
  6. Step 6: Final answer
    x = 22,299.24

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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.