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Finding the Fourth Proportional to 29,604.78, 40,831.56 and 17,665.56

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Solution

The fourth proportional to 29,604.78, 40,831.56 and 17,665.56 is: 24,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,604.78 : 40,831.56 = 17,665.56 : x
  2. Step 2: Convert to fraction form
    29,604.78/40,831.56 = 17,665.56/x
  3. Step 3: Cross multiply
    29,604.78x = 40,831.56 × 17,665.56
  4. Step 4: Simplify right side
    29,604.78x = 721,312,373.07
  5. Step 5: Solve for x
    x = 721,312,373.07/29,604.78
  6. Step 6: Final answer
    x = 24,364.73

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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.