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Finding the Fourth Proportional to 29,703.65, 40,991.54 and 16,276.21

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Solution

The fourth proportional to 29,703.65, 40,991.54 and 16,276.21 is: 22,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,703.65 : 40,991.54 = 16,276.21 : x
  2. Step 2: Convert to fraction form
    29,703.65/40,991.54 = 16,276.21/x
  3. Step 3: Cross multiply
    29,703.65x = 40,991.54 × 16,276.21
  4. Step 4: Simplify right side
    29,703.65x = 667,186,729.40
  5. Step 5: Solve for x
    x = 667,186,729.40/29,703.65
  6. Step 6: Final answer
    x = 22,461.44

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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.