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Finding the Fourth Proportional to 29,368.99, 40,529.24 and 15,940.24

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Solution

The fourth proportional to 29,368.99, 40,529.24 and 15,940.24 is: 21,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,368.99 : 40,529.24 = 15,940.24 : x
  2. Step 2: Convert to fraction form
    29,368.99/40,529.24 = 15,940.24/x
  3. Step 3: Cross multiply
    29,368.99x = 40,529.24 × 15,940.24
  4. Step 4: Simplify right side
    29,368.99x = 646,045,731.22
  5. Step 5: Solve for x
    x = 646,045,731.22/29,368.99
  6. Step 6: Final answer
    x = 21,997.55

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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.