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Finding the Fourth Proportional to 29,653.12, 40,922.40 and 16,223.56

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Solution

The fourth proportional to 29,653.12, 40,922.40 and 16,223.56 is: 22,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,653.12 : 40,922.40 = 16,223.56 : x
  2. Step 2: Convert to fraction form
    29,653.12/40,922.40 = 16,223.56/x
  3. Step 3: Cross multiply
    29,653.12x = 40,922.40 × 16,223.56
  4. Step 4: Simplify right side
    29,653.12x = 663,907,011.74
  5. Step 5: Solve for x
    x = 663,907,011.74/29,653.12
  6. Step 6: Final answer
    x = 22,389.11

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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.