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Finding the Fourth Proportional to 29,653.50, 40,921.83 and 18,475.50

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Solution

The fourth proportional to 29,653.50, 40,921.83 and 18,475.50 is: 25,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,653.50 : 40,921.83 = 18,475.50 : x
  2. Step 2: Convert to fraction form
    29,653.50/40,921.83 = 18,475.50/x
  3. Step 3: Cross multiply
    29,653.50x = 40,921.83 × 18,475.50
  4. Step 4: Simplify right side
    29,653.50x = 756,051,270.17
  5. Step 5: Solve for x
    x = 756,051,270.17/29,653.50
  6. Step 6: Final answer
    x = 25,496.19

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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.