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Finding the Fourth Proportional to 29,485.40, 40,690.58 and 16,057.40

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Solution

The fourth proportional to 29,485.40, 40,690.58 and 16,057.40 is: 22,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,485.40 : 40,690.58 = 16,057.40 : x
  2. Step 2: Convert to fraction form
    29,485.40/40,690.58 = 16,057.40/x
  3. Step 3: Cross multiply
    29,485.40x = 40,690.58 × 16,057.40
  4. Step 4: Simplify right side
    29,485.40x = 653,384,919.29
  5. Step 5: Solve for x
    x = 653,384,919.29/29,485.40
  6. Step 6: Final answer
    x = 22,159.61

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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.