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Finding the Fourth Proportional to 18,302.71, 25,257.51 and 10,747.75

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Solution

The fourth proportional to 18,302.71, 25,257.51 and 10,747.75 is: 14,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.71 : 25,257.51 = 10,747.75 : x
  2. Step 2: Convert to fraction form
    18,302.71/25,257.51 = 10,747.75/x
  3. Step 3: Cross multiply
    18,302.71x = 25,257.51 × 10,747.75
  4. Step 4: Simplify right side
    18,302.71x = 271,461,403.10
  5. Step 5: Solve for x
    x = 271,461,403.10/18,302.71
  6. Step 6: Final answer
    x = 14,831.76

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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.