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Finding the Fourth Proportional to 29,471.50, 40,674.79 and 18,883.69

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Solution

The fourth proportional to 29,471.50, 40,674.79 and 18,883.69 is: 26,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,471.50 : 40,674.79 = 18,883.69 : x
  2. Step 2: Convert to fraction form
    29,471.50/40,674.79 = 18,883.69/x
  3. Step 3: Cross multiply
    29,471.50x = 40,674.79 × 18,883.69
  4. Step 4: Simplify right side
    29,471.50x = 768,090,125.18
  5. Step 5: Solve for x
    x = 768,090,125.18/29,471.50
  6. Step 6: Final answer
    x = 26,062.13

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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.