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Finding the Fourth Proportional to 29,653.80, 40,921.54 and 16,225.16

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Solution

The fourth proportional to 29,653.80, 40,921.54 and 16,225.16 is: 22,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,653.80 : 40,921.54 = 16,225.16 : x
  2. Step 2: Convert to fraction form
    29,653.80/40,921.54 = 16,225.16/x
  3. Step 3: Cross multiply
    29,653.80x = 40,921.54 × 16,225.16
  4. Step 4: Simplify right side
    29,653.80x = 663,958,288.78
  5. Step 5: Solve for x
    x = 663,958,288.78/29,653.80
  6. Step 6: Final answer
    x = 22,390.33

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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.