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Finding the Fourth Proportional to 29,233.50, 40,342.17 and 15,804.78

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Solution

The fourth proportional to 29,233.50, 40,342.17 and 15,804.78 is: 21,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,233.50 : 40,342.17 = 15,804.78 : x
  2. Step 2: Convert to fraction form
    29,233.50/40,342.17 = 15,804.78/x
  3. Step 3: Cross multiply
    29,233.50x = 40,342.17 × 15,804.78
  4. Step 4: Simplify right side
    29,233.50x = 637,599,121.57
  5. Step 5: Solve for x
    x = 637,599,121.57/29,233.50
  6. Step 6: Final answer
    x = 21,810.56

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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.