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Finding the Fourth Proportional to 18,463.16, 27,719.34 and 15,707.54

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Solution

The fourth proportional to 18,463.16, 27,719.34 and 15,707.54 is: 23,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.16 : 27,719.34 = 15,707.54 : x
  2. Step 2: Convert to fraction form
    18,463.16/27,719.34 = 15,707.54/x
  3. Step 3: Cross multiply
    18,463.16x = 27,719.34 × 15,707.54
  4. Step 4: Simplify right side
    18,463.16x = 435,402,503.23
  5. Step 5: Solve for x
    x = 435,402,503.23/18,463.16
  6. Step 6: Final answer
    x = 23,582.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.